diff --git a/src/main/java/com/google/cloud/agentplatform/types/AgentEngine.java b/src/main/java/com/google/cloud/agentplatform/types/AgentEngine.java
index eb6ca73..a71fa2a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AgentEngine.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AgentEngine.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonIgnore
     public abstract Builder apiClient(Object apiClient);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Object> apiClient();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder apiClient(Optional<Object> apiClient);
 
@@ -87,6 +90,9 @@ public Builder clearApiClient() {
     @JsonIgnore
     public abstract Builder apiAsyncClient(Object apiAsyncClient);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Object> apiAsyncClient();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder apiAsyncClient(Optional<Object> apiAsyncClient);
 
@@ -115,6 +121,9 @@ public Builder apiResource(ReasoningEngine.Builder apiResourceBuilder) {
       return apiResource(apiResourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngine> apiResource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder apiResource(Optional<ReasoningEngine> apiResource);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineConfig.java
index 19b3c18..ff2e198 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineConfig.java
@@ -270,6 +270,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -291,6 +294,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("stagingBucket")
     public abstract Builder stagingBucket(String stagingBucket);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> stagingBucket();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder stagingBucket(Optional<String> stagingBucket);
 
@@ -312,6 +318,9 @@ public Builder clearStagingBucket() {
     @JsonProperty("requirements")
     public abstract Builder requirements(Object requirements);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Object> requirements();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requirements(Optional<Object> requirements);
 
@@ -332,6 +341,9 @@ public Builder clearRequirements() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -350,6 +362,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -369,6 +384,9 @@ public Builder clearDescription() {
     @JsonProperty("gcsDirName")
     public abstract Builder gcsDirName(String gcsDirName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> gcsDirName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder gcsDirName(Optional<String> gcsDirName);
 
@@ -385,7 +403,15 @@ public Builder clearGcsDirName() {
      * <p>extraPackages: The set of extra user-provided packages (if any).
      */
     @JsonProperty("extraPackages")
-    public abstract Builder extraPackages(List<String> extraPackages);
+    @CanIgnoreReturnValue
+    public Builder extraPackages(List<String> extraPackages) {
+      if (extraPackages().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(extraPackages().get());
+        list.addAll(extraPackages);
+        return extraPackages(java.util.Optional.of(list));
+      }
+      return extraPackages(java.util.Optional.of(extraPackages));
+    }
 
     /**
      * Setter for extraPackages.
@@ -397,6 +423,9 @@ public Builder extraPackages(String... extraPackages) {
       return extraPackages(Arrays.asList(extraPackages));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> extraPackages();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder extraPackages(Optional<List<String>> extraPackages);
 
@@ -418,6 +447,9 @@ public Builder clearExtraPackages() {
     @JsonProperty("envVars")
     public abstract Builder envVars(Object envVars);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Object> envVars();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder envVars(Optional<Object> envVars);
 
@@ -438,6 +470,9 @@ public Builder clearEnvVars() {
     @JsonProperty("serviceAccount")
     public abstract Builder serviceAccount(String serviceAccount);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> serviceAccount();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder serviceAccount(Optional<String> serviceAccount);
 
@@ -456,6 +491,9 @@ public Builder clearServiceAccount() {
     @JsonProperty("identityType")
     public abstract Builder identityType(IdentityType identityType);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<IdentityType> identityType();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder identityType(Optional<IdentityType> identityType);
 
@@ -504,6 +542,9 @@ public Builder contextSpec(ReasoningEngineContextSpec.Builder contextSpecBuilder
       return contextSpec(contextSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpec> contextSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder contextSpec(Optional<ReasoningEngineContextSpec> contextSpec);
 
@@ -532,6 +573,9 @@ public Builder pscInterfaceConfig(PscInterfaceConfig.Builder pscInterfaceConfigB
       return pscInterfaceConfig(pscInterfaceConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PscInterfaceConfig> pscInterfaceConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pscInterfaceConfig(Optional<PscInterfaceConfig> pscInterfaceConfig);
 
@@ -551,6 +595,9 @@ public Builder clearPscInterfaceConfig() {
     @JsonProperty("minInstances")
     public abstract Builder minInstances(Integer minInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> minInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder minInstances(Optional<Integer> minInstances);
 
@@ -570,6 +617,9 @@ public Builder clearMinInstances() {
     @JsonProperty("maxInstances")
     public abstract Builder maxInstances(Integer maxInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> maxInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder maxInstances(Optional<Integer> maxInstances);
 
@@ -588,7 +638,18 @@ public Builder clearMaxInstances() {
      * 'memory': '1Gi', '2Gi', ..., '32Gi'.
      */
     @JsonProperty("resourceLimits")
-    public abstract Builder resourceLimits(Map<String, String> resourceLimits);
+    @CanIgnoreReturnValue
+    public Builder resourceLimits(Map<String, String> resourceLimits) {
+      if (resourceLimits().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(resourceLimits().get());
+        map.putAll(resourceLimits);
+        return resourceLimits(java.util.Optional.of(map));
+      }
+      return resourceLimits(java.util.Optional.of(resourceLimits));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> resourceLimits();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder resourceLimits(Optional<Map<String, String>> resourceLimits);
@@ -609,6 +670,9 @@ public Builder clearResourceLimits() {
     @JsonProperty("containerConcurrency")
     public abstract Builder containerConcurrency(Integer containerConcurrency);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> containerConcurrency();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder containerConcurrency(Optional<Integer> containerConcurrency);
 
@@ -637,6 +701,9 @@ public Builder encryptionSpec(EncryptionSpec.Builder encryptionSpecBuilder) {
       return encryptionSpec(encryptionSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EncryptionSpec> encryptionSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder encryptionSpec(Optional<EncryptionSpec> encryptionSpec);
 
@@ -653,7 +720,18 @@ public Builder clearEncryptionSpec() {
      * <p>labels: The labels to be used for the Agent Engine.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -673,6 +751,9 @@ public Builder clearLabels() {
     @JsonProperty("agentServerMode")
     public abstract Builder agentServerMode(AgentServerMode agentServerMode);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<AgentServerMode> agentServerMode();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentServerMode(Optional<AgentServerMode> agentServerMode);
 
@@ -712,7 +793,15 @@ public Builder agentServerMode(String agentServerMode) {
      * method defined on the agent class.
      */
     @JsonProperty("classMethods")
-    public abstract Builder classMethods(List<Map<String, Object>> classMethods);
+    @CanIgnoreReturnValue
+    public Builder classMethods(List<Map<String, Object>> classMethods) {
+      if (classMethods().isPresent()) {
+        List<Map<String, Object>> list = new java.util.ArrayList<>(classMethods().get());
+        list.addAll(classMethods);
+        return classMethods(java.util.Optional.of(list));
+      }
+      return classMethods(java.util.Optional.of(classMethods));
+    }
 
     /**
      * Setter for classMethods.
@@ -727,6 +816,9 @@ public Builder classMethods(Map<String, Object>... classMethods) {
       return classMethods(Arrays.asList(classMethods));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Map<String, Object>>> classMethods();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder classMethods(Optional<List<Map<String, Object>>> classMethods);
 
@@ -748,7 +840,15 @@ public Builder clearClassMethods() {
      * entrypoint_object (required) - requirements_file (optional) - class_methods (required)
      */
     @JsonProperty("sourcePackages")
-    public abstract Builder sourcePackages(List<String> sourcePackages);
+    @CanIgnoreReturnValue
+    public Builder sourcePackages(List<String> sourcePackages) {
+      if (sourcePackages().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(sourcePackages().get());
+        list.addAll(sourcePackages);
+        return sourcePackages(java.util.Optional.of(list));
+      }
+      return sourcePackages(java.util.Optional.of(sourcePackages));
+    }
 
     /**
      * Setter for sourcePackages.
@@ -765,6 +865,9 @@ public Builder sourcePackages(String... sourcePackages) {
       return sourcePackages(Arrays.asList(sourcePackages));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> sourcePackages();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourcePackages(Optional<List<String>> sourcePackages);
 
@@ -800,6 +903,10 @@ public Builder developerConnectSource(
       return developerConnectSource(developerConnectSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig>
+        developerConnectSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder developerConnectSource(
         Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig> developerConnectSource);
@@ -820,6 +927,9 @@ public Builder clearDeveloperConnectSource() {
     @JsonProperty("entrypointModule")
     public abstract Builder entrypointModule(String entrypointModule);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointModule();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointModule(Optional<String> entrypointModule);
 
@@ -839,6 +949,9 @@ public Builder clearEntrypointModule() {
     @JsonProperty("entrypointObject")
     public abstract Builder entrypointObject(String entrypointObject);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointObject();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointObject(Optional<String> entrypointObject);
 
@@ -859,6 +972,9 @@ public Builder clearEntrypointObject() {
     @JsonProperty("requirementsFile")
     public abstract Builder requirementsFile(String requirementsFile);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> requirementsFile();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requirementsFile(Optional<String> requirementsFile);
 
@@ -881,6 +997,9 @@ public Builder clearRequirementsFile() {
     @JsonProperty("agentFramework")
     public abstract Builder agentFramework(AgentFramework agentFramework);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<AgentFramework> agentFramework();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentFramework(Optional<AgentFramework> agentFramework);
 
@@ -929,6 +1048,9 @@ public Builder agentFramework(String agentFramework) {
     @JsonProperty("pythonVersion")
     public abstract Builder pythonVersion(PythonVersion pythonVersion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PythonVersion> pythonVersion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pythonVersion(Optional<PythonVersion> pythonVersion);
 
@@ -972,7 +1094,18 @@ public Builder pythonVersion(String pythonVersion) {
      * path must be added to `extra_packages`.
      */
     @JsonProperty("buildOptions")
-    public abstract Builder buildOptions(Map<String, List<String>> buildOptions);
+    @CanIgnoreReturnValue
+    public Builder buildOptions(Map<String, List<String>> buildOptions) {
+      if (buildOptions().isPresent()) {
+        Map<String, List<String>> map = new java.util.HashMap<>(buildOptions().get());
+        map.putAll(buildOptions);
+        return buildOptions(java.util.Optional.of(map));
+      }
+      return buildOptions(java.util.Optional.of(buildOptions));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, List<String>>> buildOptions();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder buildOptions(Optional<Map<String, List<String>>> buildOptions);
@@ -1002,6 +1135,9 @@ public Builder imageSpec(ReasoningEngineSpecSourceCodeSpecImageSpec.Builder imag
       return imageSpec(imageSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecImageSpec> imageSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder imageSpec(Optional<ReasoningEngineSpecSourceCodeSpecImageSpec> imageSpec);
 
@@ -1032,6 +1168,9 @@ public Builder agentConfigSource(
       return agentConfigSource(agentConfigSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecAgentConfigSource> agentConfigSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentConfigSource(
         Optional<ReasoningEngineSpecSourceCodeSpecAgentConfigSource> agentConfigSource);
@@ -1061,6 +1200,9 @@ public Builder containerSpec(ReasoningEngineSpecContainerSpec.Builder containerS
       return containerSpec(containerSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecContainerSpec> containerSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder containerSpec(Optional<ReasoningEngineSpecContainerSpec> containerSpec);
 
@@ -1091,6 +1233,9 @@ public Builder agentGatewayConfig(
       return agentGatewayConfig(agentGatewayConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentGatewayConfig(
         Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig);
@@ -1124,6 +1269,9 @@ public Builder keepAliveProbe(KeepAliveProbe.Builder keepAliveProbeBuilder) {
       return keepAliveProbe(keepAliveProbeBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<KeepAliveProbe> keepAliveProbe();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder keepAliveProbe(Optional<KeepAliveProbe> keepAliveProbe);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineOperation.java b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineOperation.java
index 3cada5a..f1c374f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(ReasoningEngine.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngine> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<ReasoningEngine> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxOperation.java b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxOperation.java
index 89bb3f3..570aa3b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(SandboxEnvironment.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironment> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<SandboxEnvironment> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxSnapshotOperation.java b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxSnapshotOperation.java
index d9cc607..1fb577b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxSnapshotOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSandboxSnapshotOperation.java
@@ -94,6 +94,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -113,7 +116,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -134,6 +148,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -150,7 +167,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -180,6 +208,9 @@ public Builder response(SandboxEnvironmentSnapshot.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentSnapshot> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<SandboxEnvironmentSnapshot> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSessionOperation.java b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSessionOperation.java
index d382574..0e90f20 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSessionOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AgentEngineSessionOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(Session.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Session> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<Session> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventConfig.java b/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventConfig.java
index 174fffd..83a1e25 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventConfig.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -108,6 +111,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("content")
     public abstract Builder content(Content content);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Content> content();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder content(Optional<Content> content);
 
@@ -136,6 +142,9 @@ public Builder actions(EventActions.Builder actionsBuilder) {
       return actions(actionsBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EventActions> actions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder actions(Optional<EventActions> actions);
 
@@ -154,6 +163,9 @@ public Builder clearActions() {
     @JsonProperty("errorCode")
     public abstract Builder errorCode(String errorCode);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> errorCode();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder errorCode(Optional<String> errorCode);
 
@@ -172,6 +184,9 @@ public Builder clearErrorCode() {
     @JsonProperty("errorMessage")
     public abstract Builder errorMessage(String errorMessage);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> errorMessage();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder errorMessage(Optional<String> errorMessage);
 
@@ -200,6 +215,9 @@ public Builder eventMetadata(EventMetadata.Builder eventMetadataBuilder) {
       return eventMetadata(eventMetadataBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EventMetadata> eventMetadata();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder eventMetadata(Optional<EventMetadata> eventMetadata);
 
@@ -216,7 +234,18 @@ public Builder clearEventMetadata() {
      * <p>rawEvent: Weakly typed raw event data in proto struct format.
      */
     @JsonProperty("rawEvent")
-    public abstract Builder rawEvent(Map<String, Object> rawEvent);
+    @CanIgnoreReturnValue
+    public Builder rawEvent(Map<String, Object> rawEvent) {
+      if (rawEvent().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(rawEvent().get());
+        map.putAll(rawEvent);
+        return rawEvent(java.util.Optional.of(map));
+      }
+      return rawEvent(java.util.Optional.of(rawEvent));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> rawEvent();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder rawEvent(Optional<Map<String, Object>> rawEvent);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventRequestParameters.java
index cac16d2..52d97d6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/AppendAgentEngineSessionEventRequestParameters.java
@@ -82,6 +82,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -100,6 +103,9 @@ public Builder clearName() {
     @JsonProperty("author")
     public abstract Builder author(String author);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> author();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder author(Optional<String> author);
 
@@ -118,6 +124,9 @@ public Builder clearAuthor() {
     @JsonProperty("invocationId")
     public abstract Builder invocationId(String invocationId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> invocationId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder invocationId(Optional<String> invocationId);
 
@@ -136,6 +145,9 @@ public Builder clearInvocationId() {
     @JsonProperty("timestamp")
     public abstract Builder timestamp(Instant timestamp);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> timestamp();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder timestamp(Optional<Instant> timestamp);
 
@@ -164,6 +176,9 @@ public Builder config(AppendAgentEngineSessionEventConfig.Builder configBuilder)
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<AppendAgentEngineSessionEventConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<AppendAgentEngineSessionEventConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobAgentEngineConfig.java
index e3c8a0d..08ff425 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobAgentEngineConfig.java
@@ -67,6 +67,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -85,6 +88,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobResult.java b/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobResult.java
index 2bcc96d..9162654 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobResult.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CancelQueryJobResult.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobAgentEngineConfig.java
index 55a600a..59b30d9 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobAgentEngineConfig.java
@@ -67,6 +67,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -85,6 +88,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("retrieveResult")
     public abstract Builder retrieveResult(boolean retrieveResult);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> retrieveResult();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder retrieveResult(Optional<Boolean> retrieveResult);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResponse.java b/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResponse.java
index 8aafbe0..4ced8af 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResponse.java
@@ -65,6 +65,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -83,6 +86,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("outputGcsUri")
     public abstract Builder outputGcsUri(String outputGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> outputGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder outputGcsUri(Optional<String> outputGcsUri);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResult.java b/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResult.java
index f6175e4..018328d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResult.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CheckQueryJobResult.java
@@ -77,6 +77,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -95,6 +98,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -113,6 +119,9 @@ public Builder clearOperationName() {
     @JsonProperty("outputGcsUri")
     public abstract Builder outputGcsUri(String outputGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> outputGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder outputGcsUri(Optional<String> outputGcsUri);
 
@@ -131,6 +140,9 @@ public Builder clearOutputGcsUri() {
     @JsonProperty("status")
     public abstract Builder status(String status);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> status();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder status(Optional<String> status);
 
@@ -149,6 +161,9 @@ public Builder clearStatus() {
     @JsonProperty("result")
     public abstract Builder result(String result);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> result();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder result(Optional<String> result);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/Chunk.java b/src/main/java/com/google/cloud/agentplatform/types/Chunk.java
index 0ee4776..5693a38 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/Chunk.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/Chunk.java
@@ -71,6 +71,9 @@ private static Builder create() {
     @JsonProperty("data")
     public abstract Builder data(byte[] data);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<byte[]> data();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder data(Optional<byte[]> data);
 
@@ -99,6 +102,9 @@ public Builder metadata(Metadata.Builder metadataBuilder) {
       return metadata(metadataBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Metadata> metadata();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Metadata> metadata);
 
@@ -118,6 +124,9 @@ public Builder clearMetadata() {
     @JsonProperty("mimeType")
     public abstract Builder mimeType(String mimeType);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> mimeType();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder mimeType(Optional<String> mimeType);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineConfig.java
index 02cc910..b9f6d9d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineConfig.java
@@ -211,6 +211,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -231,6 +234,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -249,6 +255,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -277,6 +286,9 @@ public Builder spec(ReasoningEngineSpec.Builder specBuilder) {
       return spec(specBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpec> spec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder spec(Optional<ReasoningEngineSpec> spec);
 
@@ -305,6 +317,9 @@ public Builder contextSpec(ReasoningEngineContextSpec.Builder contextSpecBuilder
       return contextSpec(contextSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpec> contextSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder contextSpec(Optional<ReasoningEngineContextSpec> contextSpec);
 
@@ -335,6 +350,9 @@ public Builder pscInterfaceConfig(PscInterfaceConfig.Builder pscInterfaceConfigB
       return pscInterfaceConfig(pscInterfaceConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PscInterfaceConfig> pscInterfaceConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pscInterfaceConfig(Optional<PscInterfaceConfig> pscInterfaceConfig);
 
@@ -354,6 +372,9 @@ public Builder clearPscInterfaceConfig() {
     @JsonProperty("minInstances")
     public abstract Builder minInstances(Integer minInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> minInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder minInstances(Optional<Integer> minInstances);
 
@@ -373,6 +394,9 @@ public Builder clearMinInstances() {
     @JsonProperty("maxInstances")
     public abstract Builder maxInstances(Integer maxInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> maxInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder maxInstances(Optional<Integer> maxInstances);
 
@@ -391,7 +415,18 @@ public Builder clearMaxInstances() {
      * 'memory': '1Gi', '2Gi', ..., '32Gi'.
      */
     @JsonProperty("resourceLimits")
-    public abstract Builder resourceLimits(Map<String, String> resourceLimits);
+    @CanIgnoreReturnValue
+    public Builder resourceLimits(Map<String, String> resourceLimits) {
+      if (resourceLimits().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(resourceLimits().get());
+        map.putAll(resourceLimits);
+        return resourceLimits(java.util.Optional.of(map));
+      }
+      return resourceLimits(java.util.Optional.of(resourceLimits));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> resourceLimits();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder resourceLimits(Optional<Map<String, String>> resourceLimits);
@@ -412,6 +447,9 @@ public Builder clearResourceLimits() {
     @JsonProperty("containerConcurrency")
     public abstract Builder containerConcurrency(Integer containerConcurrency);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> containerConcurrency();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder containerConcurrency(Optional<Integer> containerConcurrency);
 
@@ -440,6 +478,9 @@ public Builder encryptionSpec(EncryptionSpec.Builder encryptionSpecBuilder) {
       return encryptionSpec(encryptionSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EncryptionSpec> encryptionSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder encryptionSpec(Optional<EncryptionSpec> encryptionSpec);
 
@@ -456,7 +497,18 @@ public Builder clearEncryptionSpec() {
      * <p>labels: The labels to be used for the Agent Engine.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -477,7 +529,15 @@ public Builder clearLabels() {
      * method defined on the agent class.
      */
     @JsonProperty("classMethods")
-    public abstract Builder classMethods(List<Map<String, Object>> classMethods);
+    @CanIgnoreReturnValue
+    public Builder classMethods(List<Map<String, Object>> classMethods) {
+      if (classMethods().isPresent()) {
+        List<Map<String, Object>> list = new java.util.ArrayList<>(classMethods().get());
+        list.addAll(classMethods);
+        return classMethods(java.util.Optional.of(list));
+      }
+      return classMethods(java.util.Optional.of(classMethods));
+    }
 
     /**
      * Setter for classMethods.
@@ -492,6 +552,9 @@ public Builder classMethods(Map<String, Object>... classMethods) {
       return classMethods(Arrays.asList(classMethods));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Map<String, Object>>> classMethods();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder classMethods(Optional<List<Map<String, Object>>> classMethods);
 
@@ -513,7 +576,15 @@ public Builder clearClassMethods() {
      * entrypoint_object (required) - requirements_file (optional) - class_methods (required)
      */
     @JsonProperty("sourcePackages")
-    public abstract Builder sourcePackages(List<String> sourcePackages);
+    @CanIgnoreReturnValue
+    public Builder sourcePackages(List<String> sourcePackages) {
+      if (sourcePackages().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(sourcePackages().get());
+        list.addAll(sourcePackages);
+        return sourcePackages(java.util.Optional.of(list));
+      }
+      return sourcePackages(java.util.Optional.of(sourcePackages));
+    }
 
     /**
      * Setter for sourcePackages.
@@ -530,6 +601,9 @@ public Builder sourcePackages(String... sourcePackages) {
       return sourcePackages(Arrays.asList(sourcePackages));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> sourcePackages();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourcePackages(Optional<List<String>> sourcePackages);
 
@@ -565,6 +639,10 @@ public Builder developerConnectSource(
       return developerConnectSource(developerConnectSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig>
+        developerConnectSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder developerConnectSource(
         Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig> developerConnectSource);
@@ -585,6 +663,9 @@ public Builder clearDeveloperConnectSource() {
     @JsonProperty("entrypointModule")
     public abstract Builder entrypointModule(String entrypointModule);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointModule();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointModule(Optional<String> entrypointModule);
 
@@ -604,6 +685,9 @@ public Builder clearEntrypointModule() {
     @JsonProperty("entrypointObject")
     public abstract Builder entrypointObject(String entrypointObject);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointObject();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointObject(Optional<String> entrypointObject);
 
@@ -624,6 +708,9 @@ public Builder clearEntrypointObject() {
     @JsonProperty("requirementsFile")
     public abstract Builder requirementsFile(String requirementsFile);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> requirementsFile();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requirementsFile(Optional<String> requirementsFile);
 
@@ -646,6 +733,9 @@ public Builder clearRequirementsFile() {
     @JsonProperty("agentFramework")
     public abstract Builder agentFramework(AgentFramework agentFramework);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<AgentFramework> agentFramework();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentFramework(Optional<AgentFramework> agentFramework);
 
@@ -694,6 +784,9 @@ public Builder agentFramework(String agentFramework) {
     @JsonProperty("pythonVersion")
     public abstract Builder pythonVersion(PythonVersion pythonVersion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PythonVersion> pythonVersion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pythonVersion(Optional<PythonVersion> pythonVersion);
 
@@ -737,7 +830,18 @@ public Builder pythonVersion(String pythonVersion) {
      * path must be added to `extra_packages`.
      */
     @JsonProperty("buildOptions")
-    public abstract Builder buildOptions(Map<String, List<String>> buildOptions);
+    @CanIgnoreReturnValue
+    public Builder buildOptions(Map<String, List<String>> buildOptions) {
+      if (buildOptions().isPresent()) {
+        Map<String, List<String>> map = new java.util.HashMap<>(buildOptions().get());
+        map.putAll(buildOptions);
+        return buildOptions(java.util.Optional.of(map));
+      }
+      return buildOptions(java.util.Optional.of(buildOptions));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, List<String>>> buildOptions();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder buildOptions(Optional<Map<String, List<String>>> buildOptions);
@@ -769,6 +873,9 @@ public Builder agentGatewayConfig(
       return agentGatewayConfig(agentGatewayConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentGatewayConfig(
         Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig);
@@ -802,6 +909,9 @@ public Builder keepAliveProbe(KeepAliveProbe.Builder keepAliveProbeBuilder) {
       return keepAliveProbe(keepAliveProbeBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<KeepAliveProbe> keepAliveProbe();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder keepAliveProbe(Optional<KeepAliveProbe> keepAliveProbe);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineRequestParameters.java
index 2bb4493..65abbd8 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineRequestParameters.java
@@ -75,6 +75,9 @@ public Builder config(CreateAgentEngineConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<CreateAgentEngineConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<CreateAgentEngineConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxConfig.java
index cc3a615..5b97e75 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxConfig.java
@@ -103,6 +103,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -121,6 +124,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -139,6 +145,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -157,6 +166,9 @@ public Builder clearDescription() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -175,6 +187,9 @@ public Builder clearWaitForCompletion() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -195,6 +210,9 @@ public Builder clearTtl() {
     @JsonProperty("sandboxEnvironmentTemplate")
     public abstract Builder sandboxEnvironmentTemplate(String sandboxEnvironmentTemplate);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sandboxEnvironmentTemplate();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironmentTemplate(Optional<String> sandboxEnvironmentTemplate);
 
@@ -215,6 +233,9 @@ public Builder clearSandboxEnvironmentTemplate() {
     @JsonProperty("sandboxEnvironmentSnapshot")
     public abstract Builder sandboxEnvironmentSnapshot(String sandboxEnvironmentSnapshot);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sandboxEnvironmentSnapshot();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironmentSnapshot(Optional<String> sandboxEnvironmentSnapshot);
 
@@ -234,6 +255,9 @@ public Builder clearSandboxEnvironmentSnapshot() {
     @JsonProperty("owner")
     public abstract Builder owner(String owner);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> owner();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder owner(Optional<String> owner);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxRequestParameters.java
index a35ef52..3f22d9b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxRequestParameters.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -101,6 +104,9 @@ public Builder spec(SandboxEnvironmentSpec.Builder specBuilder) {
       return spec(specBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentSpec> spec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder spec(Optional<SandboxEnvironmentSpec> spec);
 
@@ -129,6 +135,9 @@ public Builder config(CreateAgentEngineSandboxConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<CreateAgentEngineSandboxConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<CreateAgentEngineSandboxConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxSnapshotConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxSnapshotConfig.java
index 9900bd3..409f432 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxSnapshotConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSandboxSnapshotConfig.java
@@ -81,6 +81,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -99,6 +102,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -117,6 +123,9 @@ public Builder clearDisplayName() {
     @JsonProperty("owner")
     public abstract Builder owner(String owner);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> owner();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder owner(Optional<String> owner);
 
@@ -135,6 +144,9 @@ public Builder clearOwner() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -153,6 +165,9 @@ public Builder clearTtl() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionConfig.java
index 7d93cd0..d65980f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionConfig.java
@@ -111,6 +111,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -129,6 +132,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -145,7 +151,18 @@ public Builder clearDisplayName() {
      * <p>sessionState: Session state which stores key conversation points.
      */
     @JsonProperty("sessionState")
-    public abstract Builder sessionState(Map<String, Object> sessionState);
+    @CanIgnoreReturnValue
+    public Builder sessionState(Map<String, Object> sessionState) {
+      if (sessionState().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(sessionState().get());
+        map.putAll(sessionState);
+        return sessionState(java.util.Optional.of(map));
+      }
+      return sessionState(java.util.Optional.of(sessionState));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> sessionState();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessionState(Optional<Map<String, Object>> sessionState);
@@ -165,6 +182,9 @@ public Builder clearSessionState() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -185,6 +205,9 @@ public Builder clearWaitForCompletion() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -204,6 +227,9 @@ public Builder clearTtl() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -223,7 +249,18 @@ public Builder clearExpireTime() {
      * allowed. See https://goo.gl/xmQnxf for more information and examples of labels.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -246,6 +283,9 @@ public Builder clearLabels() {
     @JsonProperty("sessionId")
     public abstract Builder sessionId(String sessionId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sessionId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessionId(Optional<String> sessionId);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionRequestParameters.java
index 07c6ebc..a383990 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateAgentEngineSessionRequestParameters.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -91,6 +94,9 @@ public Builder clearName() {
     @JsonProperty("userId")
     public abstract Builder userId(String userId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> userId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder userId(Optional<String> userId);
 
@@ -119,6 +125,9 @@ public Builder config(CreateAgentEngineSessionConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<CreateAgentEngineSessionConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<CreateAgentEngineSessionConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankConfig.java
index 4611323..709d724 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankConfig.java
@@ -78,6 +78,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -98,6 +101,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -116,6 +122,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -144,6 +153,9 @@ public Builder encryptionSpec(EncryptionSpec.Builder encryptionSpecBuilder) {
       return encryptionSpec(encryptionSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EncryptionSpec> encryptionSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder encryptionSpec(Optional<EncryptionSpec> encryptionSpec);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankRequestParameters.java
index 0222d21..9852854 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryBankRequestParameters.java
@@ -81,6 +81,9 @@ public Builder memoryBankConfig(
       return memoryBankConfig(memoryBankConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpecMemoryBankConfig> memoryBankConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryBankConfig(
         Optional<ReasoningEngineContextSpecMemoryBankConfig> memoryBankConfig);
@@ -110,6 +113,9 @@ public Builder config(CreateMemoryBankConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<CreateMemoryBankConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<CreateMemoryBankConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryRequestParameters.java
index 8dee92b..7ea0b26 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateMemoryRequestParameters.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -107,6 +110,9 @@ public Builder clearName() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -127,7 +133,18 @@ public Builder clearFact() {
      * character '*'.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -157,6 +174,9 @@ public Builder config(MemoryConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<MemoryConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentSnapshotRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentSnapshotRequestParameters.java
index 14be74e..d99cc14 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentSnapshotRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentSnapshotRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("sourceSandboxEnvironmentName")
     public abstract Builder sourceSandboxEnvironmentName(String sourceSandboxEnvironmentName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sourceSandboxEnvironmentName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourceSandboxEnvironmentName(Optional<String> sourceSandboxEnvironmentName);
 
@@ -97,6 +100,9 @@ public Builder config(CreateAgentEngineSandboxSnapshotConfig.Builder configBuild
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<CreateAgentEngineSandboxSnapshotConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<CreateAgentEngineSandboxSnapshotConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateConfig.java b/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateConfig.java
index a048510..6cf2288 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateConfig.java
@@ -82,6 +82,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -113,6 +116,10 @@ public Builder customContainerEnvironment(
       return customContainerEnvironment(customContainerEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateCustomContainerEnvironment>
+        customContainerEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customContainerEnvironment(
         Optional<SandboxEnvironmentTemplateCustomContainerEnvironment> customContainerEnvironment);
@@ -145,6 +152,10 @@ public Builder defaultContainerEnvironment(
       return defaultContainerEnvironment(defaultContainerEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateDefaultContainerEnvironment>
+        defaultContainerEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder defaultContainerEnvironment(
         Optional<SandboxEnvironmentTemplateDefaultContainerEnvironment>
@@ -177,6 +188,9 @@ public Builder egressControlConfig(
       return egressControlConfig(egressControlConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateEgressControlConfig> egressControlConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder egressControlConfig(
         Optional<SandboxEnvironmentTemplateEgressControlConfig> egressControlConfig);
@@ -196,6 +210,9 @@ public Builder clearEgressControlConfig() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateRequestParameters.java
index d94f568..d1b8500 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/CreateSandboxEnvironmentTemplateRequestParameters.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -91,6 +94,9 @@ public Builder clearName() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -119,6 +125,9 @@ public Builder config(CreateSandboxEnvironmentTemplateConfig.Builder configBuild
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<CreateSandboxEnvironmentTemplateConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<CreateSandboxEnvironmentTemplateConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineConfig.java
index 1fe990e..6696321 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineOperation.java
index b850a4a..72533ee 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineOperation.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -106,7 +109,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -127,6 +141,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -143,7 +160,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineRequestParameters.java
index 4e20e21..8a59ac7 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineRequestParameters.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -91,6 +94,9 @@ public Builder clearName() {
     @JsonProperty("force")
     public abstract Builder force(boolean force);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> force();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder force(Optional<Boolean> force);
 
@@ -119,6 +125,9 @@ public Builder config(DeleteAgentEngineConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteAgentEngineConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteAgentEngineConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxConfig.java
index 6fe81fa..1438292 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxConfig.java
@@ -63,6 +63,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxOperation.java
index 5eab608..f4befcd 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxOperation.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -109,7 +112,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -130,6 +144,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -146,7 +163,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxRequestParameters.java
index f48c717..2178cae 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSandboxRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(DeleteAgentEngineSandboxConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteAgentEngineSandboxConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteAgentEngineSandboxConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionConfig.java
index 418fc9a..d92a51d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionConfig.java
@@ -63,6 +63,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionOperation.java
index c56505a..39d5a83 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionOperation.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -109,7 +112,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -130,6 +144,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -146,7 +163,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionRequestParameters.java
index 2f0edf3..469a42c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteAgentEngineSessionRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(DeleteAgentEngineSessionConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteAgentEngineSessionConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteAgentEngineSessionConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankConfig.java
index 3f9ba2b..a1b7b3e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankOperation.java
index 335ae5f..d1c33e0 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankOperation.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -106,7 +109,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -127,6 +141,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -143,7 +160,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankRequestParameters.java
index 30386ac..a0ced0a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryBankRequestParameters.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -91,6 +94,9 @@ public Builder clearName() {
     @JsonProperty("force")
     public abstract Builder force(boolean force);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> force();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder force(Optional<Boolean> force);
 
@@ -119,6 +125,9 @@ public Builder config(DeleteMemoryBankConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteMemoryBankConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteMemoryBankConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryConfig.java
index c1e37da..36d6762 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryOperation.java
index d84afd6..e688f4e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryOperation.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -106,7 +109,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -127,6 +141,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -143,7 +160,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryRequestParameters.java
index 9749ec0..a3adc60 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteMemoryRequestParameters.java
@@ -68,6 +68,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -96,6 +99,9 @@ public Builder config(DeleteMemoryConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteMemoryConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteMemoryConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotConfig.java
index da874f0..3552d89 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotConfig.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotOperation.java
index 7f751c6..6e8bb5b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotOperation.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -109,7 +112,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -130,6 +144,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -146,7 +163,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotRequestParameters.java
index c2f1985..38be2a5 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentSnapshotRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(DeleteSandboxEnvironmentSnapshotConfig.Builder configBuild
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteSandboxEnvironmentSnapshotConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteSandboxEnvironmentSnapshotConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateConfig.java
index 149160d..530fc53 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateConfig.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateOperation.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateOperation.java
index 5bd72ad..775f928 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateOperation.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -109,7 +112,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -130,6 +144,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -146,7 +163,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateRequestParameters.java
index 6e788c2..065d885 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DeleteSandboxEnvironmentTemplateRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(DeleteSandboxEnvironmentTemplateConfig.Builder configBuild
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DeleteSandboxEnvironmentTemplateConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<DeleteSandboxEnvironmentTemplateConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/DnsPeeringConfig.java b/src/main/java/com/google/cloud/agentplatform/types/DnsPeeringConfig.java
index f95b472..a9bd1d2 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/DnsPeeringConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/DnsPeeringConfig.java
@@ -82,6 +82,9 @@ private static Builder create() {
     @JsonProperty("domain")
     public abstract Builder domain(String domain);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> domain();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder domain(Optional<String> domain);
 
@@ -101,6 +104,9 @@ public Builder clearDomain() {
     @JsonProperty("targetNetwork")
     public abstract Builder targetNetwork(String targetNetwork);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> targetNetwork();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder targetNetwork(Optional<String> targetNetwork);
 
@@ -120,6 +126,9 @@ public Builder clearTargetNetwork() {
     @JsonProperty("targetProject")
     public abstract Builder targetProject(String targetProject);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> targetProject();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder targetProject(Optional<String> targetProject);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/EncryptionSpec.java b/src/main/java/com/google/cloud/agentplatform/types/EncryptionSpec.java
index 8962c8e..e3b6e78 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/EncryptionSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/EncryptionSpec.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("kmsKeyName")
     public abstract Builder kmsKeyName(String kmsKeyName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> kmsKeyName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder kmsKeyName(Optional<String> kmsKeyName);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/EnvVar.java b/src/main/java/com/google/cloud/agentplatform/types/EnvVar.java
index dce9d96..f15bbe1 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/EnvVar.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/EnvVar.java
@@ -70,6 +70,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -92,6 +95,9 @@ public Builder clearName() {
     @JsonProperty("value")
     public abstract Builder value(String value);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> value();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder value(Optional<String> value);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/EventActions.java b/src/main/java/com/google/cloud/agentplatform/types/EventActions.java
index fff23d2..d44dbaa 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/EventActions.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/EventActions.java
@@ -90,7 +90,18 @@ private static Builder create() {
      * filename, value is the version.
      */
     @JsonProperty("artifactDelta")
-    public abstract Builder artifactDelta(Map<String, Integer> artifactDelta);
+    @CanIgnoreReturnValue
+    public Builder artifactDelta(Map<String, Integer> artifactDelta) {
+      if (artifactDelta().isPresent()) {
+        Map<String, Integer> map = new java.util.HashMap<>(artifactDelta().get());
+        map.putAll(artifactDelta);
+        return artifactDelta(java.util.Optional.of(map));
+      }
+      return artifactDelta(java.util.Optional.of(artifactDelta));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Integer>> artifactDelta();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder artifactDelta(Optional<Map<String, Integer>> artifactDelta);
@@ -110,6 +121,9 @@ public Builder clearArtifactDelta() {
     @JsonProperty("escalate")
     public abstract Builder escalate(boolean escalate);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> escalate();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder escalate(Optional<Boolean> escalate);
 
@@ -129,7 +143,18 @@ public Builder clearEscalate() {
      * can be another struct.
      */
     @JsonProperty("requestedAuthConfigs")
-    public abstract Builder requestedAuthConfigs(Map<String, Object> requestedAuthConfigs);
+    @CanIgnoreReturnValue
+    public Builder requestedAuthConfigs(Map<String, Object> requestedAuthConfigs) {
+      if (requestedAuthConfigs().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(requestedAuthConfigs().get());
+        map.putAll(requestedAuthConfigs);
+        return requestedAuthConfigs(java.util.Optional.of(map));
+      }
+      return requestedAuthConfigs(java.util.Optional.of(requestedAuthConfigs));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> requestedAuthConfigs();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requestedAuthConfigs(Optional<Map<String, Object>> requestedAuthConfigs);
@@ -150,6 +175,9 @@ public Builder clearRequestedAuthConfigs() {
     @JsonProperty("skipSummarization")
     public abstract Builder skipSummarization(boolean skipSummarization);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> skipSummarization();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder skipSummarization(Optional<Boolean> skipSummarization);
 
@@ -166,7 +194,18 @@ public Builder clearSkipSummarization() {
      * <p>stateDelta: Optional. Indicates that the event is updating the state with the given delta.
      */
     @JsonProperty("stateDelta")
-    public abstract Builder stateDelta(Map<String, Object> stateDelta);
+    @CanIgnoreReturnValue
+    public Builder stateDelta(Map<String, Object> stateDelta) {
+      if (stateDelta().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(stateDelta().get());
+        map.putAll(stateDelta);
+        return stateDelta(java.util.Optional.of(map));
+      }
+      return stateDelta(java.util.Optional.of(stateDelta));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> stateDelta();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder stateDelta(Optional<Map<String, Object>> stateDelta);
@@ -186,6 +225,9 @@ public Builder clearStateDelta() {
     @JsonProperty("transferAgent")
     public abstract Builder transferAgent(String transferAgent);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> transferAgent();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder transferAgent(Optional<String> transferAgent);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/EventMetadata.java b/src/main/java/com/google/cloud/agentplatform/types/EventMetadata.java
index 315465d..a9babf6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/EventMetadata.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/EventMetadata.java
@@ -113,6 +113,9 @@ private static Builder create() {
     @JsonProperty("groundingMetadata")
     public abstract Builder groundingMetadata(GroundingMetadata groundingMetadata);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GroundingMetadata> groundingMetadata();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder groundingMetadata(Optional<GroundingMetadata> groundingMetadata);
 
@@ -133,6 +136,9 @@ public Builder clearGroundingMetadata() {
     @JsonProperty("branch")
     public abstract Builder branch(String branch);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> branch();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder branch(Optional<String> branch);
 
@@ -149,7 +155,18 @@ public Builder clearBranch() {
      * <p>customMetadata: The custom metadata of the LlmResponse.
      */
     @JsonProperty("customMetadata")
-    public abstract Builder customMetadata(Map<String, Object> customMetadata);
+    @CanIgnoreReturnValue
+    public Builder customMetadata(Map<String, Object> customMetadata) {
+      if (customMetadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(customMetadata().get());
+        map.putAll(customMetadata);
+        return customMetadata(java.util.Optional.of(map));
+      }
+      return customMetadata(java.util.Optional.of(customMetadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> customMetadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customMetadata(Optional<Map<String, Object>> customMetadata);
@@ -170,6 +187,9 @@ public Builder clearCustomMetadata() {
     @JsonProperty("interrupted")
     public abstract Builder interrupted(boolean interrupted);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> interrupted();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder interrupted(Optional<Boolean> interrupted);
 
@@ -188,7 +208,15 @@ public Builder clearInterrupted() {
      * call event.
      */
     @JsonProperty("longRunningToolIds")
-    public abstract Builder longRunningToolIds(List<String> longRunningToolIds);
+    @CanIgnoreReturnValue
+    public Builder longRunningToolIds(List<String> longRunningToolIds) {
+      if (longRunningToolIds().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(longRunningToolIds().get());
+        list.addAll(longRunningToolIds);
+        return longRunningToolIds(java.util.Optional.of(list));
+      }
+      return longRunningToolIds(java.util.Optional.of(longRunningToolIds));
+    }
 
     /**
      * Setter for longRunningToolIds.
@@ -202,6 +230,9 @@ public Builder longRunningToolIds(String... longRunningToolIds) {
       return longRunningToolIds(Arrays.asList(longRunningToolIds));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> longRunningToolIds();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder longRunningToolIds(Optional<List<String>> longRunningToolIds);
 
@@ -221,6 +252,9 @@ public Builder clearLongRunningToolIds() {
     @JsonProperty("partial")
     public abstract Builder partial(boolean partial);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> partial();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder partial(Optional<Boolean> partial);
 
@@ -240,6 +274,9 @@ public Builder clearPartial() {
     @JsonProperty("turnComplete")
     public abstract Builder turnComplete(boolean turnComplete);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> turnComplete();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder turnComplete(Optional<Boolean> turnComplete);
 
@@ -258,6 +295,9 @@ public Builder clearTurnComplete() {
     @JsonProperty("inputTranscription")
     public abstract Builder inputTranscription(Transcription inputTranscription);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Transcription> inputTranscription();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder inputTranscription(Optional<Transcription> inputTranscription);
 
@@ -276,6 +316,9 @@ public Builder clearInputTranscription() {
     @JsonProperty("outputTranscription")
     public abstract Builder outputTranscription(Transcription outputTranscription);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Transcription> outputTranscription();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder outputTranscription(Optional<Transcription> outputTranscription);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxConfig.java
index 018f34e..87816cc 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxConfig.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxRequestParameters.java
index 82685b6..f7b93fb 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ExecuteCodeAgentEngineSandboxRequestParameters.java
@@ -77,6 +77,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -93,7 +96,15 @@ public Builder clearName() {
      * <p>inputs: Inputs to the code execution.
      */
     @JsonProperty("inputs")
-    public abstract Builder inputs(List<Chunk> inputs);
+    @CanIgnoreReturnValue
+    public Builder inputs(List<Chunk> inputs) {
+      if (inputs().isPresent()) {
+        List<Chunk> list = new java.util.ArrayList<>(inputs().get());
+        list.addAll(inputs);
+        return inputs(java.util.Optional.of(list));
+      }
+      return inputs(java.util.Optional.of(inputs));
+    }
 
     /**
      * Setter for inputs.
@@ -118,6 +129,9 @@ public Builder inputs(Chunk.Builder... inputsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Chunk>> inputs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder inputs(Optional<List<Chunk>> inputs);
 
@@ -146,6 +160,9 @@ public Builder config(ExecuteCodeAgentEngineSandboxConfig.Builder configBuilder)
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ExecuteCodeAgentEngineSandboxConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ExecuteCodeAgentEngineSandboxConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ExecuteSandboxEnvironmentResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ExecuteSandboxEnvironmentResponse.java
index 1f7a317..3015582 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ExecuteSandboxEnvironmentResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ExecuteSandboxEnvironmentResponse.java
@@ -65,7 +65,15 @@ private static Builder create() {
      * <p>outputs: The outputs from the sandbox environment.
      */
     @JsonProperty("outputs")
-    public abstract Builder outputs(List<Chunk> outputs);
+    @CanIgnoreReturnValue
+    public Builder outputs(List<Chunk> outputs) {
+      if (outputs().isPresent()) {
+        List<Chunk> list = new java.util.ArrayList<>(outputs().get());
+        list.addAll(outputs);
+        return outputs(java.util.Optional.of(list));
+      }
+      return outputs(java.util.Optional.of(outputs));
+    }
 
     /**
      * Setter for outputs.
@@ -90,6 +98,9 @@ public Builder outputs(Chunk.Builder... outputsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Chunk>> outputs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder outputs(Optional<List<Chunk>> outputs);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesConfig.java
index cab2481..531c645 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesConfig.java
@@ -119,6 +119,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -141,6 +144,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("disableConsolidation")
     public abstract Builder disableConsolidation(boolean disableConsolidation);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableConsolidation();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableConsolidation(Optional<Boolean> disableConsolidation);
 
@@ -159,6 +165,9 @@ public Builder clearDisableConsolidation() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -176,7 +185,18 @@ public Builder clearWaitForCompletion() {
      * label a revision with its data source.
      */
     @JsonProperty("revisionLabels")
-    public abstract Builder revisionLabels(Map<String, String> revisionLabels);
+    @CanIgnoreReturnValue
+    public Builder revisionLabels(Map<String, String> revisionLabels) {
+      if (revisionLabels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(revisionLabels().get());
+        map.putAll(revisionLabels);
+        return revisionLabels(java.util.Optional.of(map));
+      }
+      return revisionLabels(java.util.Optional.of(revisionLabels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> revisionLabels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionLabels(Optional<Map<String, String>> revisionLabels);
@@ -197,6 +217,9 @@ public Builder clearRevisionLabels() {
     @JsonProperty("revisionExpireTime")
     public abstract Builder revisionExpireTime(Instant revisionExpireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> revisionExpireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionExpireTime(Optional<Instant> revisionExpireTime);
 
@@ -216,6 +239,9 @@ public Builder clearRevisionExpireTime() {
     @JsonProperty("revisionTtl")
     public abstract Builder revisionTtl(Duration revisionTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> revisionTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionTtl(Optional<Duration> revisionTtl);
 
@@ -235,6 +261,9 @@ public Builder clearRevisionTtl() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
@@ -252,7 +281,18 @@ public Builder clearDisableMemoryRevisions() {
      * generated by Memory Bank.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, MemoryMetadataValue> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, MemoryMetadataValue> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, MemoryMetadataValue> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, MemoryMetadataValue>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, MemoryMetadataValue>> metadata);
@@ -274,6 +314,9 @@ public Builder clearMetadata() {
     public abstract Builder metadataMergeStrategy(
         MemoryMetadataMergeStrategy metadataMergeStrategy);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryMetadataMergeStrategy> metadataMergeStrategy();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadataMergeStrategy(
         Optional<MemoryMetadataMergeStrategy> metadataMergeStrategy);
@@ -313,7 +356,15 @@ public Builder metadataMergeStrategy(String metadataMergeStrategy) {
      * <p>allowedTopics: Optional. Restricts memory generation to a subset of memory topics.
      */
     @JsonProperty("allowedTopics")
-    public abstract Builder allowedTopics(List<MemoryTopicId> allowedTopics);
+    @CanIgnoreReturnValue
+    public Builder allowedTopics(List<MemoryTopicId> allowedTopics) {
+      if (allowedTopics().isPresent()) {
+        List<MemoryTopicId> list = new java.util.ArrayList<>(allowedTopics().get());
+        list.addAll(allowedTopics);
+        return allowedTopics(java.util.Optional.of(list));
+      }
+      return allowedTopics(java.util.Optional.of(allowedTopics));
+    }
 
     /**
      * Setter for allowedTopics.
@@ -338,6 +389,9 @@ public Builder allowedTopics(MemoryTopicId.Builder... allowedTopicsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryTopicId>> allowedTopics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder allowedTopics(Optional<List<MemoryTopicId>> allowedTopics);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesOperation.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesOperation.java
index cdd8e7e..d0be659 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(GenerateMemoriesResponse.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GenerateMemoriesResponse> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<GenerateMemoriesResponse> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSource.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSource.java
index aca6b21..86309f9 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSource.java
@@ -65,7 +65,16 @@ private static Builder create() {
      * <p>events: Required. The source content (i.e. chat history) to generate memories from.
      */
     @JsonProperty("events")
-    public abstract Builder events(List<GenerateMemoriesRequestDirectContentsSourceEvent> events);
+    @CanIgnoreReturnValue
+    public Builder events(List<GenerateMemoriesRequestDirectContentsSourceEvent> events) {
+      if (events().isPresent()) {
+        List<GenerateMemoriesRequestDirectContentsSourceEvent> list =
+            new java.util.ArrayList<>(events().get());
+        list.addAll(events);
+        return events(java.util.Optional.of(list));
+      }
+      return events(java.util.Optional.of(events));
+    }
 
     /**
      * Setter for events.
@@ -91,6 +100,9 @@ public Builder events(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<GenerateMemoriesRequestDirectContentsSourceEvent>> events();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder events(
         Optional<List<GenerateMemoriesRequestDirectContentsSourceEvent>> events);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSourceEvent.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSourceEvent.java
index b388b3d..422ee80 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSourceEvent.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectContentsSourceEvent.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("content")
     public abstract Builder content(Content content);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Content> content();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder content(Optional<Content> content);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSource.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSource.java
index 72ea4ed..bc8924e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSource.java
@@ -70,8 +70,17 @@ private static Builder create() {
      * memories are allowed per request.
      */
     @JsonProperty("directMemories")
-    public abstract Builder directMemories(
-        List<GenerateMemoriesRequestDirectMemoriesSourceDirectMemory> directMemories);
+    @CanIgnoreReturnValue
+    public Builder directMemories(
+        List<GenerateMemoriesRequestDirectMemoriesSourceDirectMemory> directMemories) {
+      if (directMemories().isPresent()) {
+        List<GenerateMemoriesRequestDirectMemoriesSourceDirectMemory> list =
+            new java.util.ArrayList<>(directMemories().get());
+        list.addAll(directMemories);
+        return directMemories(java.util.Optional.of(list));
+      }
+      return directMemories(java.util.Optional.of(directMemories));
+    }
 
     /**
      * Setter for directMemories.
@@ -100,6 +109,10 @@ public Builder directMemories(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<GenerateMemoriesRequestDirectMemoriesSourceDirectMemory>>
+        directMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder directMemories(
         Optional<List<GenerateMemoriesRequestDirectMemoriesSourceDirectMemory>> directMemories);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSourceDirectMemory.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSourceDirectMemory.java
index 216e212..8c97761 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSourceDirectMemory.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestDirectMemoriesSourceDirectMemory.java
@@ -72,6 +72,9 @@ private static Builder create() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -88,7 +91,15 @@ public Builder clearFact() {
      * <p>topics: Optional. The topics that the consolidated memories should be associated with.
      */
     @JsonProperty("topics")
-    public abstract Builder topics(List<MemoryTopicId> topics);
+    @CanIgnoreReturnValue
+    public Builder topics(List<MemoryTopicId> topics) {
+      if (topics().isPresent()) {
+        List<MemoryTopicId> list = new java.util.ArrayList<>(topics().get());
+        list.addAll(topics);
+        return topics(java.util.Optional.of(list));
+      }
+      return topics(java.util.Optional.of(topics));
+    }
 
     /**
      * Setter for topics.
@@ -113,6 +124,9 @@ public Builder topics(MemoryTopicId.Builder... topicsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryTopicId>> topics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder topics(Optional<List<MemoryTopicId>> topics);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestParameters.java
index 91670d2..abf70c5 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestParameters.java
@@ -92,6 +92,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -122,6 +125,9 @@ public Builder vertexSessionSource(
       return vertexSessionSource(vertexSessionSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GenerateMemoriesRequestVertexSessionSource> vertexSessionSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder vertexSessionSource(
         Optional<GenerateMemoriesRequestVertexSessionSource> vertexSessionSource);
@@ -153,6 +159,9 @@ public Builder directContentsSource(
       return directContentsSource(directContentsSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GenerateMemoriesRequestDirectContentsSource> directContentsSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder directContentsSource(
         Optional<GenerateMemoriesRequestDirectContentsSource> directContentsSource);
@@ -184,6 +193,9 @@ public Builder directMemoriesSource(
       return directMemoriesSource(directMemoriesSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GenerateMemoriesRequestDirectMemoriesSource> directMemoriesSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder directMemoriesSource(
         Optional<GenerateMemoriesRequestDirectMemoriesSource> directMemoriesSource);
@@ -205,7 +217,18 @@ public Builder clearDirectMemoriesSource() {
      * scope defined in the source content. Scope values cannot contain the wildcard character '*'.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -235,6 +258,9 @@ public Builder config(GenerateMemoriesConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GenerateMemoriesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GenerateMemoriesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestVertexSessionSource.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestVertexSessionSource.java
index 08ce666..32975b6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestVertexSessionSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesRequestVertexSessionSource.java
@@ -79,6 +79,9 @@ private static Builder create() {
     @JsonProperty("endTime")
     public abstract Builder endTime(Instant endTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> endTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder endTime(Optional<Instant> endTime);
 
@@ -98,6 +101,9 @@ public Builder clearEndTime() {
     @JsonProperty("session")
     public abstract Builder session(String session);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> session();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder session(Optional<String> session);
 
@@ -117,6 +123,9 @@ public Builder clearSession() {
     @JsonProperty("startTime")
     public abstract Builder startTime(Instant startTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> startTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder startTime(Optional<Instant> startTime);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponse.java
index 59892a5..e200e12 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponse.java
@@ -62,8 +62,17 @@ private static Builder create() {
      * <p>generatedMemories: The generated memories.
      */
     @JsonProperty("generatedMemories")
-    public abstract Builder generatedMemories(
-        List<GenerateMemoriesResponseGeneratedMemory> generatedMemories);
+    @CanIgnoreReturnValue
+    public Builder generatedMemories(
+        List<GenerateMemoriesResponseGeneratedMemory> generatedMemories) {
+      if (generatedMemories().isPresent()) {
+        List<GenerateMemoriesResponseGeneratedMemory> list =
+            new java.util.ArrayList<>(generatedMemories().get());
+        list.addAll(generatedMemories);
+        return generatedMemories(java.util.Optional.of(list));
+      }
+      return generatedMemories(java.util.Optional.of(generatedMemories));
+    }
 
     /**
      * Setter for generatedMemories.
@@ -89,6 +98,9 @@ public Builder generatedMemories(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<GenerateMemoriesResponseGeneratedMemory>> generatedMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generatedMemories(
         Optional<List<GenerateMemoriesResponseGeneratedMemory>> generatedMemories);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponseGeneratedMemory.java b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponseGeneratedMemory.java
index c717350..1cd1669 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponseGeneratedMemory.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GenerateMemoriesResponseGeneratedMemory.java
@@ -86,6 +86,9 @@ public Builder memory(Memory.Builder memoryBuilder) {
       return memory(memoryBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Memory> memory();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memory(Optional<Memory> memory);
 
@@ -104,6 +107,9 @@ public Builder clearMemory() {
     @JsonProperty("action")
     public abstract Builder action(GenerateMemoriesResponseGeneratedMemoryAction action);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GenerateMemoriesResponseGeneratedMemoryAction> action();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder action(Optional<GenerateMemoriesResponseGeneratedMemoryAction> action);
 
@@ -145,6 +151,9 @@ public Builder action(String action) {
     @JsonProperty("previousRevision")
     public abstract Builder previousRevision(String previousRevision);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> previousRevision();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder previousRevision(Optional<String> previousRevision);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineConfig.java
index 0b97ac8..b79bf6b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationConfig.java
index ce78687..17c5afd 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationConfig.java
@@ -63,6 +63,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationParameters.java
index 9b61766..9c6fb34 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineRequestParameters.java
index 9ff5e48..c931c38 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineRequestParameters.java
@@ -68,6 +68,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -96,6 +99,9 @@ public Builder config(GetAgentEngineConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxConfig.java
index a191f19..e543c47 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxOperationParameters.java
index e56d751..2f1eadc 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxRequestParameters.java
index 4288add..91c5c47 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineSandboxConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineSandboxConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineSandboxConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxSnapshotOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxSnapshotOperationParameters.java
index 03a1643..ea9b184 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxSnapshotOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSandboxSnapshotOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionConfig.java
index ce80f50..09d81e3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionOperationParameters.java
index 393c594..37646c6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionRequestParameters.java
index 406c041..a16daec 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetAgentEngineSessionRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineSessionConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineSessionConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineSessionConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetGenerateMemoriesOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetGenerateMemoriesOperationParameters.java
index 335f6bc..2258143 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetGenerateMemoriesOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetGenerateMemoriesOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetMemoryBankOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetMemoryBankOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetMemoryBankOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankConfig.java
index 5c5c939..c754155 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationConfig.java
index 34321ac..e5efc15 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationConfig.java
@@ -63,6 +63,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationParameters.java
index 373395a..ab65be3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetMemoryBankOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetMemoryBankOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetMemoryBankOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankRequestParameters.java
index e198f51..5170588 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryBankRequestParameters.java
@@ -68,6 +68,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -96,6 +99,9 @@ public Builder config(GetMemoryBankConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetMemoryBankConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetMemoryBankConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryConfig.java
index 7c7c1a5..d2c9657 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryOperationParameters.java
index 538e697..f046281 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryOperationParameters.java
@@ -68,6 +68,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -96,6 +99,9 @@ public Builder config(GetMemoryBankOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetMemoryBankOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetMemoryBankOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRequestParameters.java
index 54fe00a..dce39d3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRequestParameters.java
@@ -66,6 +66,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -94,6 +97,9 @@ public Builder config(GetMemoryConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetMemoryConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetMemoryConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionConfig.java
index 218c5d5..5977b1a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionConfig.java
@@ -61,6 +61,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionRequestParameters.java
index ed0776b..f323943 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetMemoryRevisionRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(GetMemoryRevisionConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetMemoryRevisionConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetMemoryRevisionConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotConfig.java
index 1a390c8..832c80c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotConfig.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotRequestParameters.java
index b0790f5..864ac2e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentSnapshotRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(GetSandboxEnvironmentSnapshotConfig.Builder configBuilder)
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetSandboxEnvironmentSnapshotConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetSandboxEnvironmentSnapshotConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateConfig.java b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateConfig.java
index 0c4efbe..fd5c77f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateConfig.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateOperationParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateOperationParameters.java
index 0201311..313358a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateOperationParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateOperationParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("operationName")
     public abstract Builder operationName(String operationName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> operationName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder operationName(Optional<String> operationName);
 
@@ -97,6 +100,9 @@ public Builder config(GetAgentEngineOperationConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetAgentEngineOperationConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetAgentEngineOperationConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateRequestParameters.java
index ba45917..1336331 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/GetSandboxEnvironmentTemplateRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(GetSandboxEnvironmentTemplateConfig.Builder configBuilder)
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<GetSandboxEnvironmentTemplateConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<GetSandboxEnvironmentTemplateConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/IngestEventsConfig.java b/src/main/java/com/google/cloud/agentplatform/types/IngestEventsConfig.java
index 1ec8529..1fe401d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/IngestEventsConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/IngestEventsConfig.java
@@ -111,6 +111,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -130,6 +133,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -150,6 +156,9 @@ public Builder clearWaitForCompletion() {
     @JsonProperty("forceFlush")
     public abstract Builder forceFlush(boolean forceFlush);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> forceFlush();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder forceFlush(Optional<Boolean> forceFlush);
 
@@ -167,7 +176,18 @@ public Builder clearForceFlush() {
      * label a revision with its data source.
      */
     @JsonProperty("revisionLabels")
-    public abstract Builder revisionLabels(Map<String, String> revisionLabels);
+    @CanIgnoreReturnValue
+    public Builder revisionLabels(Map<String, String> revisionLabels) {
+      if (revisionLabels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(revisionLabels().get());
+        map.putAll(revisionLabels);
+        return revisionLabels(java.util.Optional.of(map));
+      }
+      return revisionLabels(java.util.Optional.of(revisionLabels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> revisionLabels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionLabels(Optional<Map<String, String>> revisionLabels);
@@ -188,6 +208,9 @@ public Builder clearRevisionLabels() {
     @JsonProperty("revisionExpireTime")
     public abstract Builder revisionExpireTime(Instant revisionExpireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> revisionExpireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionExpireTime(Optional<Instant> revisionExpireTime);
 
@@ -207,6 +230,9 @@ public Builder clearRevisionExpireTime() {
     @JsonProperty("revisionTtl")
     public abstract Builder revisionTtl(Duration revisionTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> revisionTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionTtl(Optional<Duration> revisionTtl);
 
@@ -226,6 +252,9 @@ public Builder clearRevisionTtl() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
@@ -243,7 +272,18 @@ public Builder clearDisableMemoryRevisions() {
      * generated by Memory Bank.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, MemoryMetadataValue> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, MemoryMetadataValue> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, MemoryMetadataValue> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, MemoryMetadataValue>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, MemoryMetadataValue>> metadata);
@@ -265,6 +305,9 @@ public Builder clearMetadata() {
     public abstract Builder metadataMergeStrategy(
         MemoryMetadataMergeStrategy metadataMergeStrategy);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryMetadataMergeStrategy> metadataMergeStrategy();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadataMergeStrategy(
         Optional<MemoryMetadataMergeStrategy> metadataMergeStrategy);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/IngestEventsRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/IngestEventsRequestParameters.java
index 0a6060d..086e3da 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/IngestEventsRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/IngestEventsRequestParameters.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -108,6 +111,9 @@ public Builder clearName() {
     @JsonProperty("streamId")
     public abstract Builder streamId(String streamId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> streamId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder streamId(Optional<String> streamId);
 
@@ -138,6 +144,9 @@ public Builder directContentsSource(
       return directContentsSource(directContentsSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<IngestionDirectContentsSource> directContentsSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder directContentsSource(
         Optional<IngestionDirectContentsSource> directContentsSource);
@@ -158,7 +167,18 @@ public Builder clearDirectContentsSource() {
      * contain the wildcard character '*'.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -190,6 +210,9 @@ public Builder generationTriggerConfig(
       return generationTriggerConfig(generationTriggerConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryGenerationTriggerConfig> generationTriggerConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generationTriggerConfig(
         Optional<MemoryGenerationTriggerConfig> generationTriggerConfig);
@@ -219,6 +242,9 @@ public Builder config(IngestEventsConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<IngestEventsConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<IngestEventsConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSource.java b/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSource.java
index 5ae6888..556aed9 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSource.java
@@ -64,7 +64,15 @@ private static Builder create() {
      * <p>events: Required. The events to ingest.
      */
     @JsonProperty("events")
-    public abstract Builder events(List<IngestionDirectContentsSourceEvent> events);
+    @CanIgnoreReturnValue
+    public Builder events(List<IngestionDirectContentsSourceEvent> events) {
+      if (events().isPresent()) {
+        List<IngestionDirectContentsSourceEvent> list = new java.util.ArrayList<>(events().get());
+        list.addAll(events);
+        return events(java.util.Optional.of(list));
+      }
+      return events(java.util.Optional.of(events));
+    }
 
     /**
      * Setter for events.
@@ -89,6 +97,9 @@ public Builder events(IngestionDirectContentsSourceEvent.Builder... eventsBuilde
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<IngestionDirectContentsSourceEvent>> events();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder events(Optional<List<IngestionDirectContentsSourceEvent>> events);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSourceEvent.java b/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSourceEvent.java
index 0d1e75e..ae4226b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSourceEvent.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/IngestionDirectContentsSourceEvent.java
@@ -79,6 +79,9 @@ private static Builder create() {
     @JsonProperty("content")
     public abstract Builder content(Content content);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Content> content();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder content(Optional<Content> content);
 
@@ -98,6 +101,9 @@ public Builder clearContent() {
     @JsonProperty("eventId")
     public abstract Builder eventId(String eventId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> eventId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder eventId(Optional<String> eventId);
 
@@ -118,6 +124,9 @@ public Builder clearEventId() {
     @JsonProperty("eventTime")
     public abstract Builder eventTime(Instant eventTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> eventTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder eventTime(Optional<Instant> eventTime);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/IntermediateExtractedMemory.java b/src/main/java/com/google/cloud/agentplatform/types/IntermediateExtractedMemory.java
index 70cd875..8f0b015 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/IntermediateExtractedMemory.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/IntermediateExtractedMemory.java
@@ -72,6 +72,9 @@ private static Builder create() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -88,7 +91,18 @@ public Builder clearFact() {
      * <p>structuredData: Output only. Represents the structured value of the extracted memory.
      */
     @JsonProperty("structuredData")
-    public abstract Builder structuredData(Map<String, Object> structuredData);
+    @CanIgnoreReturnValue
+    public Builder structuredData(Map<String, Object> structuredData) {
+      if (structuredData().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(structuredData().get());
+        map.putAll(structuredData);
+        return structuredData(java.util.Optional.of(map));
+      }
+      return structuredData(java.util.Optional.of(structuredData));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> structuredData();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder structuredData(Optional<Map<String, Object>> structuredData);
@@ -109,6 +123,9 @@ public Builder clearStructuredData() {
     @JsonProperty("context")
     public abstract Builder context(String context);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> context();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder context(Optional<String> context);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbe.java b/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbe.java
index 441b106..599ee6f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbe.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbe.java
@@ -80,6 +80,9 @@ public Builder httpGet(KeepAliveProbeHttpGet.Builder httpGetBuilder) {
       return httpGet(httpGetBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<KeepAliveProbeHttpGet> httpGet();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpGet(Optional<KeepAliveProbeHttpGet> httpGet);
 
@@ -99,6 +102,9 @@ public Builder clearHttpGet() {
     @JsonProperty("maxSeconds")
     public abstract Builder maxSeconds(Integer maxSeconds);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> maxSeconds();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder maxSeconds(Optional<Integer> maxSeconds);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbeHttpGet.java b/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbeHttpGet.java
index ebb68f3..fd851ed 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbeHttpGet.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/KeepAliveProbeHttpGet.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("path")
     public abstract Builder path(String path);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> path();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder path(Optional<String> path);
 
@@ -82,6 +85,9 @@ public Builder clearPath() {
     @JsonProperty("port")
     public abstract Builder port(Integer port);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> port();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder port(Optional<Integer> port);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineConfig.java
index 0a4577d..0519aae 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineConfig.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -94,6 +97,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -112,6 +118,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -131,6 +140,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineRequestParameters.java
index 84ec191..83106da 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineRequestParameters.java
@@ -75,6 +75,9 @@ public Builder config(ListAgentEngineConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListAgentEngineConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListAgentEngineConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesConfig.java
index 4dab798..e2639e8 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesConfig.java
@@ -78,6 +78,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -96,6 +99,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -114,6 +120,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -133,6 +142,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesRequestParameters.java
index 46ab2b6..f569c4f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(ListAgentEngineSandboxesConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListAgentEngineSandboxesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListAgentEngineSandboxesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesResponse.java
index 2eabe0d..14d1ffe 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSandboxesResponse.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -94,6 +97,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -110,7 +116,15 @@ public Builder clearNextPageToken() {
      * <p>sandboxEnvironments: List of agent engine sandboxes.
      */
     @JsonProperty("sandboxEnvironments")
-    public abstract Builder sandboxEnvironments(List<SandboxEnvironment> sandboxEnvironments);
+    @CanIgnoreReturnValue
+    public Builder sandboxEnvironments(List<SandboxEnvironment> sandboxEnvironments) {
+      if (sandboxEnvironments().isPresent()) {
+        List<SandboxEnvironment> list = new java.util.ArrayList<>(sandboxEnvironments().get());
+        list.addAll(sandboxEnvironments);
+        return sandboxEnvironments(java.util.Optional.of(list));
+      }
+      return sandboxEnvironments(java.util.Optional.of(sandboxEnvironments));
+    }
 
     /**
      * Setter for sandboxEnvironments.
@@ -135,6 +149,9 @@ public Builder sandboxEnvironments(SandboxEnvironment.Builder... sandboxEnvironm
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SandboxEnvironment>> sandboxEnvironments();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironments(Optional<List<SandboxEnvironment>> sandboxEnvironments);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsConfig.java
index 28fdd3f..c09ac08 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsConfig.java
@@ -79,6 +79,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -97,6 +100,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -115,6 +121,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -134,6 +143,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsRequestParameters.java
index 4131737..0869b69 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(ListAgentEngineSessionEventsConfig.Builder configBuilder)
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListAgentEngineSessionEventsConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListAgentEngineSessionEventsConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsResponse.java
index d099758..86814b1 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionEventsResponse.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -94,6 +97,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -110,7 +116,15 @@ public Builder clearNextPageToken() {
      * <p>sessionEvents: List of session events.
      */
     @JsonProperty("sessionEvents")
-    public abstract Builder sessionEvents(List<SessionEvent> sessionEvents);
+    @CanIgnoreReturnValue
+    public Builder sessionEvents(List<SessionEvent> sessionEvents) {
+      if (sessionEvents().isPresent()) {
+        List<SessionEvent> list = new java.util.ArrayList<>(sessionEvents().get());
+        list.addAll(sessionEvents);
+        return sessionEvents(java.util.Optional.of(list));
+      }
+      return sessionEvents(java.util.Optional.of(sessionEvents));
+    }
 
     /**
      * Setter for sessionEvents.
@@ -135,6 +149,9 @@ public Builder sessionEvents(SessionEvent.Builder... sessionEventsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SessionEvent>> sessionEvents();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessionEvents(Optional<List<SessionEvent>> sessionEvents);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsConfig.java
index 3d6c1d1..322b76b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsConfig.java
@@ -78,6 +78,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -96,6 +99,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -114,6 +120,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -133,6 +142,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsRequestParameters.java
index 0766b87..f20c5b7 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListAgentEngineSessionsRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(ListAgentEngineSessionsConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListAgentEngineSessionsConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListAgentEngineSessionsConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesConfig.java
index 1610335..572816b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesConfig.java
@@ -86,6 +86,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -104,6 +107,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -122,6 +128,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -141,6 +150,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
@@ -163,6 +175,9 @@ public Builder clearFilter() {
     @JsonProperty("orderBy")
     public abstract Builder orderBy(String orderBy);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> orderBy();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder orderBy(Optional<String> orderBy);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesRequestParameters.java
index ba0531a..a60caf2 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesRequestParameters.java
@@ -68,6 +68,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -96,6 +99,9 @@ public Builder config(ListMemoriesConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListMemoriesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListMemoriesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesResponse.java
index 671710e..c8caaf3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoriesResponse.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -91,6 +94,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -107,7 +113,15 @@ public Builder clearNextPageToken() {
      * <p>memories: List of memories.
      */
     @JsonProperty("memories")
-    public abstract Builder memories(List<Memory> memories);
+    @CanIgnoreReturnValue
+    public Builder memories(List<Memory> memories) {
+      if (memories().isPresent()) {
+        List<Memory> list = new java.util.ArrayList<>(memories().get());
+        list.addAll(memories);
+        return memories(java.util.Optional.of(list));
+      }
+      return memories(java.util.Optional.of(memories));
+    }
 
     /**
      * Setter for memories.
@@ -132,6 +146,9 @@ public Builder memories(Memory.Builder... memoriesBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Memory>> memories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memories(Optional<List<Memory>> memories);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksConfig.java
index 80a14d8..4a88514 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksConfig.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -87,6 +90,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -105,6 +111,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksRequestParameters.java
index 99350ed..e7f7601 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksRequestParameters.java
@@ -75,6 +75,9 @@ public Builder config(ListMemoryBanksConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListMemoryBanksConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListMemoryBanksConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksResponse.java
index e7b62cd..5c0155a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryBanksResponse.java
@@ -62,7 +62,15 @@ private static Builder create() {
      * <p>memoryBanks: The list of Memory Banks.
      */
     @JsonProperty("memoryBanks")
-    public abstract Builder memoryBanks(List<MemoryBank> memoryBanks);
+    @CanIgnoreReturnValue
+    public Builder memoryBanks(List<MemoryBank> memoryBanks) {
+      if (memoryBanks().isPresent()) {
+        List<MemoryBank> list = new java.util.ArrayList<>(memoryBanks().get());
+        list.addAll(memoryBanks);
+        return memoryBanks(java.util.Optional.of(list));
+      }
+      return memoryBanks(java.util.Optional.of(memoryBanks));
+    }
 
     /**
      * Setter for memoryBanks.
@@ -87,6 +95,9 @@ public Builder memoryBanks(MemoryBank.Builder... memoryBanksBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryBank>> memoryBanks();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryBanks(Optional<List<MemoryBank>> memoryBanks);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsConfig.java
index d83c36b..1c07786 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsConfig.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -94,6 +97,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -112,6 +118,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -131,6 +140,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsRequestParameters.java
index 449c78f..30a42b8 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(ListMemoryRevisionsConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListMemoryRevisionsConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListMemoryRevisionsConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsResponse.java
index 9152a41..c97d20d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListMemoryRevisionsResponse.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -91,6 +94,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -107,7 +113,15 @@ public Builder clearNextPageToken() {
      * <p>memoryRevisions: List of memory revisions.
      */
     @JsonProperty("memoryRevisions")
-    public abstract Builder memoryRevisions(List<MemoryRevision> memoryRevisions);
+    @CanIgnoreReturnValue
+    public Builder memoryRevisions(List<MemoryRevision> memoryRevisions) {
+      if (memoryRevisions().isPresent()) {
+        List<MemoryRevision> list = new java.util.ArrayList<>(memoryRevisions().get());
+        list.addAll(memoryRevisions);
+        return memoryRevisions(java.util.Optional.of(list));
+      }
+      return memoryRevisions(java.util.Optional.of(memoryRevisions));
+    }
 
     /**
      * Setter for memoryRevisions.
@@ -132,6 +146,9 @@ public Builder memoryRevisions(MemoryRevision.Builder... memoryRevisionsBuilders
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryRevision>> memoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryRevisions(Optional<List<MemoryRevision>> memoryRevisions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesResponse.java
index cc7e1cc..1c11904 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesResponse.java
@@ -75,6 +75,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -93,6 +96,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -109,7 +115,15 @@ public Builder clearNextPageToken() {
      * <p>reasoningEngines: List of agent engines.
      */
     @JsonProperty("reasoningEngines")
-    public abstract Builder reasoningEngines(List<ReasoningEngine> reasoningEngines);
+    @CanIgnoreReturnValue
+    public Builder reasoningEngines(List<ReasoningEngine> reasoningEngines) {
+      if (reasoningEngines().isPresent()) {
+        List<ReasoningEngine> list = new java.util.ArrayList<>(reasoningEngines().get());
+        list.addAll(reasoningEngines);
+        return reasoningEngines(java.util.Optional.of(list));
+      }
+      return reasoningEngines(java.util.Optional.of(reasoningEngines));
+    }
 
     /**
      * Setter for reasoningEngines.
@@ -134,6 +148,9 @@ public Builder reasoningEngines(ReasoningEngine.Builder... reasoningEnginesBuild
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<ReasoningEngine>> reasoningEngines();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder reasoningEngines(Optional<List<ReasoningEngine>> reasoningEngines);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesSessionsResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesSessionsResponse.java
index 173c98d..45ffa05 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesSessionsResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListReasoningEnginesSessionsResponse.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -94,6 +97,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -110,7 +116,15 @@ public Builder clearNextPageToken() {
      * <p>sessions: List of agent engine sessions.
      */
     @JsonProperty("sessions")
-    public abstract Builder sessions(List<Session> sessions);
+    @CanIgnoreReturnValue
+    public Builder sessions(List<Session> sessions) {
+      if (sessions().isPresent()) {
+        List<Session> list = new java.util.ArrayList<>(sessions().get());
+        list.addAll(sessions);
+        return sessions(java.util.Optional.of(list));
+      }
+      return sessions(java.util.Optional.of(sessions));
+    }
 
     /**
      * Setter for sessions.
@@ -135,6 +149,9 @@ public Builder sessions(Session.Builder... sessionsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Session>> sessions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessions(Optional<List<Session>> sessions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsConfig.java
index 268f389..ee53252 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsConfig.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -94,6 +97,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -112,6 +118,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -130,6 +139,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsRequestParameters.java
index 05ea415..654a892 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(ListSandboxEnvironmentSnapshotsConfig.Builder configBuilde
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListSandboxEnvironmentSnapshotsConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListSandboxEnvironmentSnapshotsConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsResponse.java
index 48fc831..64b9e4a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentSnapshotsResponse.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -94,6 +97,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -110,8 +116,17 @@ public Builder clearNextPageToken() {
      * <p>sandboxEnvironmentSnapshots: List of sandbox environment snapshots.
      */
     @JsonProperty("sandboxEnvironmentSnapshots")
-    public abstract Builder sandboxEnvironmentSnapshots(
-        List<SandboxEnvironmentSnapshot> sandboxEnvironmentSnapshots);
+    @CanIgnoreReturnValue
+    public Builder sandboxEnvironmentSnapshots(
+        List<SandboxEnvironmentSnapshot> sandboxEnvironmentSnapshots) {
+      if (sandboxEnvironmentSnapshots().isPresent()) {
+        List<SandboxEnvironmentSnapshot> list =
+            new java.util.ArrayList<>(sandboxEnvironmentSnapshots().get());
+        list.addAll(sandboxEnvironmentSnapshots);
+        return sandboxEnvironmentSnapshots(java.util.Optional.of(list));
+      }
+      return sandboxEnvironmentSnapshots(java.util.Optional.of(sandboxEnvironmentSnapshots));
+    }
 
     /**
      * Setter for sandboxEnvironmentSnapshots.
@@ -138,6 +153,9 @@ public Builder sandboxEnvironmentSnapshots(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SandboxEnvironmentSnapshot>> sandboxEnvironmentSnapshots();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironmentSnapshots(
         Optional<List<SandboxEnvironmentSnapshot>> sandboxEnvironmentSnapshots);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesConfig.java
index 7b9a6d5..f01b97f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesConfig.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -94,6 +97,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -112,6 +118,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
@@ -130,6 +139,9 @@ public Builder clearPageToken() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesRequestParameters.java
index 173f85d..5d31172 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(ListSandboxEnvironmentTemplatesConfig.Builder configBuilde
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ListSandboxEnvironmentTemplatesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<ListSandboxEnvironmentTemplatesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesResponse.java
index fd12ffd..9f2171d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ListSandboxEnvironmentTemplatesResponse.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("sdkHttpResponse")
     public abstract Builder sdkHttpResponse(HttpResponse sdkHttpResponse);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpResponse> sdkHttpResponse();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sdkHttpResponse(Optional<HttpResponse> sdkHttpResponse);
 
@@ -94,6 +97,9 @@ public Builder clearSdkHttpResponse() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -110,8 +116,17 @@ public Builder clearNextPageToken() {
      * <p>sandboxEnvironmentTemplates: List of sandbox templates.
      */
     @JsonProperty("sandboxEnvironmentTemplates")
-    public abstract Builder sandboxEnvironmentTemplates(
-        List<SandboxEnvironmentTemplate> sandboxEnvironmentTemplates);
+    @CanIgnoreReturnValue
+    public Builder sandboxEnvironmentTemplates(
+        List<SandboxEnvironmentTemplate> sandboxEnvironmentTemplates) {
+      if (sandboxEnvironmentTemplates().isPresent()) {
+        List<SandboxEnvironmentTemplate> list =
+            new java.util.ArrayList<>(sandboxEnvironmentTemplates().get());
+        list.addAll(sandboxEnvironmentTemplates);
+        return sandboxEnvironmentTemplates(java.util.Optional.of(list));
+      }
+      return sandboxEnvironmentTemplates(java.util.Optional.of(sandboxEnvironmentTemplates));
+    }
 
     /**
      * Setter for sandboxEnvironmentTemplates.
@@ -138,6 +153,9 @@ public Builder sandboxEnvironmentTemplates(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SandboxEnvironmentTemplate>> sandboxEnvironmentTemplates();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironmentTemplates(
         Optional<List<SandboxEnvironmentTemplate>> sandboxEnvironmentTemplates);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfig.java
index 9d6f4d6..7320b6c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfig.java
@@ -104,6 +104,9 @@ public Builder generationConfig(
       return generationConfig(generationConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedSemanticMemoryConfigGenerationConfig> generationConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generationConfig(
         Optional<ManagedSemanticMemoryConfigGenerationConfig> generationConfig);
@@ -135,6 +138,9 @@ public Builder similaritySearchConfig(
       return similaritySearchConfig(similaritySearchConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedSemanticMemoryConfigSimilaritySearchConfig> similaritySearchConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder similaritySearchConfig(
         Optional<ManagedSemanticMemoryConfigSimilaritySearchConfig> similaritySearchConfig);
@@ -153,8 +159,17 @@ public Builder clearSimilaritySearchConfig() {
      * particular scope for unstructured memories.
      */
     @JsonProperty("unstructuredMemoryConfigs")
-    public abstract Builder unstructuredMemoryConfigs(
-        List<MemoryBankCustomizationConfig> unstructuredMemoryConfigs);
+    @CanIgnoreReturnValue
+    public Builder unstructuredMemoryConfigs(
+        List<MemoryBankCustomizationConfig> unstructuredMemoryConfigs) {
+      if (unstructuredMemoryConfigs().isPresent()) {
+        List<MemoryBankCustomizationConfig> list =
+            new java.util.ArrayList<>(unstructuredMemoryConfigs().get());
+        list.addAll(unstructuredMemoryConfigs);
+        return unstructuredMemoryConfigs(java.util.Optional.of(list));
+      }
+      return unstructuredMemoryConfigs(java.util.Optional.of(unstructuredMemoryConfigs));
+    }
 
     /**
      * Setter for unstructuredMemoryConfigs.
@@ -183,6 +198,9 @@ public Builder unstructuredMemoryConfigs(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryBankCustomizationConfig>> unstructuredMemoryConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder unstructuredMemoryConfigs(
         Optional<List<MemoryBankCustomizationConfig>> unstructuredMemoryConfigs);
@@ -201,8 +219,16 @@ public Builder clearUnstructuredMemoryConfigs() {
      * scope.
      */
     @JsonProperty("structuredMemoryConfigs")
-    public abstract Builder structuredMemoryConfigs(
-        List<StructuredMemoryConfig> structuredMemoryConfigs);
+    @CanIgnoreReturnValue
+    public Builder structuredMemoryConfigs(List<StructuredMemoryConfig> structuredMemoryConfigs) {
+      if (structuredMemoryConfigs().isPresent()) {
+        List<StructuredMemoryConfig> list =
+            new java.util.ArrayList<>(structuredMemoryConfigs().get());
+        list.addAll(structuredMemoryConfigs);
+        return structuredMemoryConfigs(java.util.Optional.of(list));
+      }
+      return structuredMemoryConfigs(java.util.Optional.of(structuredMemoryConfigs));
+    }
 
     /**
      * Setter for structuredMemoryConfigs.
@@ -230,6 +256,9 @@ public Builder structuredMemoryConfigs(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<StructuredMemoryConfig>> structuredMemoryConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder structuredMemoryConfigs(
         Optional<List<StructuredMemoryConfig>> structuredMemoryConfigs);
@@ -263,6 +292,9 @@ public Builder ttlConfig(ManagedSemanticMemoryConfigTtlConfig.Builder ttlConfigB
       return ttlConfig(ttlConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedSemanticMemoryConfigTtlConfig> ttlConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttlConfig(Optional<ManagedSemanticMemoryConfigTtlConfig> ttlConfig);
 
@@ -282,6 +314,9 @@ public Builder clearTtlConfig() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigGenerationConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigGenerationConfig.java
index 52a1b00..b9244ad 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigGenerationConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigGenerationConfig.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("model")
     public abstract Builder model(String model);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> model();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder model(Optional<String> model);
 
@@ -103,6 +106,9 @@ public Builder generationTriggerConfig(
       return generationTriggerConfig(generationTriggerConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryGenerationTriggerConfig> generationTriggerConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generationTriggerConfig(
         Optional<MemoryGenerationTriggerConfig> generationTriggerConfig);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigSimilaritySearchConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigSimilaritySearchConfig.java
index 5836cb7..1281e96 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigSimilaritySearchConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigSimilaritySearchConfig.java
@@ -67,6 +67,9 @@ private static Builder create() {
     @JsonProperty("embeddingModel")
     public abstract Builder embeddingModel(String embeddingModel);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> embeddingModel();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder embeddingModel(Optional<String> embeddingModel);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfig.java
index 076868f..65d2334 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfig.java
@@ -82,6 +82,9 @@ private static Builder create() {
     @JsonProperty("defaultTtl")
     public abstract Builder defaultTtl(String defaultTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> defaultTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder defaultTtl(Optional<String> defaultTtl);
 
@@ -112,6 +115,9 @@ public Builder granularTtlConfig(
       return granularTtlConfig(granularTtlConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedSemanticMemoryConfigTtlConfigGranularTtlConfig> granularTtlConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder granularTtlConfig(
         Optional<ManagedSemanticMemoryConfigTtlConfigGranularTtlConfig> granularTtlConfig);
@@ -133,6 +139,9 @@ public Builder clearGranularTtlConfig() {
     @JsonProperty("memoryRevisionDefaultTtl")
     public abstract Builder memoryRevisionDefaultTtl(String memoryRevisionDefaultTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> memoryRevisionDefaultTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryRevisionDefaultTtl(Optional<String> memoryRevisionDefaultTtl);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfigGranularTtlConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfigGranularTtlConfig.java
index 4fc6ac8..32a9eb4 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfigGranularTtlConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ManagedSemanticMemoryConfigTtlConfigGranularTtlConfig.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("createTtl")
     public abstract Builder createTtl(String createTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> createTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTtl(Optional<String> createTtl);
 
@@ -95,6 +98,9 @@ public Builder clearCreateTtl() {
     @JsonProperty("generateCreatedTtl")
     public abstract Builder generateCreatedTtl(String generateCreatedTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> generateCreatedTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generateCreatedTtl(Optional<String> generateCreatedTtl);
 
@@ -115,6 +121,9 @@ public Builder clearGenerateCreatedTtl() {
     @JsonProperty("generateUpdatedTtl")
     public abstract Builder generateUpdatedTtl(String generateUpdatedTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> generateUpdatedTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generateUpdatedTtl(Optional<String> generateUpdatedTtl);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/Memory.java b/src/main/java/com/google/cloud/agentplatform/types/Memory.java
index 20a713e..a34be72 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/Memory.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/Memory.java
@@ -161,6 +161,9 @@ private static Builder create() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -179,6 +182,9 @@ public Builder clearCreateTime() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -198,6 +204,9 @@ public Builder clearDescription() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
@@ -216,6 +225,9 @@ public Builder clearDisableMemoryRevisions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -236,6 +248,9 @@ public Builder clearDisplayName() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -254,6 +269,9 @@ public Builder clearExpireTime() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -272,7 +290,18 @@ public Builder clearFact() {
      * Bank.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, MemoryMetadataValue> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, MemoryMetadataValue> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, MemoryMetadataValue> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, MemoryMetadataValue>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, MemoryMetadataValue>> metadata);
@@ -293,6 +322,9 @@ public Builder clearMetadata() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -312,6 +344,9 @@ public Builder clearName() {
     @JsonProperty("revisionExpireTime")
     public abstract Builder revisionExpireTime(Instant revisionExpireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> revisionExpireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionExpireTime(Optional<Instant> revisionExpireTime);
 
@@ -329,7 +364,18 @@ public Builder clearRevisionExpireTime() {
      * Revision created as a result of this request.
      */
     @JsonProperty("revisionLabels")
-    public abstract Builder revisionLabels(Map<String, String> revisionLabels);
+    @CanIgnoreReturnValue
+    public Builder revisionLabels(Map<String, String> revisionLabels) {
+      if (revisionLabels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(revisionLabels().get());
+        map.putAll(revisionLabels);
+        return revisionLabels(java.util.Optional.of(map));
+      }
+      return revisionLabels(java.util.Optional.of(revisionLabels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> revisionLabels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionLabels(Optional<Map<String, String>> revisionLabels);
@@ -350,6 +396,9 @@ public Builder clearRevisionLabels() {
     @JsonProperty("revisionTtl")
     public abstract Builder revisionTtl(Duration revisionTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> revisionTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionTtl(Optional<Duration> revisionTtl);
 
@@ -368,7 +417,18 @@ public Builder clearRevisionTtl() {
      * cannot contain the wildcard character '*'.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -386,7 +446,15 @@ public Builder clearScope() {
      * <p>topics: Optional. Represents the Topics of the Memory.
      */
     @JsonProperty("topics")
-    public abstract Builder topics(List<MemoryTopicId> topics);
+    @CanIgnoreReturnValue
+    public Builder topics(List<MemoryTopicId> topics) {
+      if (topics().isPresent()) {
+        List<MemoryTopicId> list = new java.util.ArrayList<>(topics().get());
+        list.addAll(topics);
+        return topics(java.util.Optional.of(list));
+      }
+      return topics(java.util.Optional.of(topics));
+    }
 
     /**
      * Setter for topics.
@@ -411,6 +479,9 @@ public Builder topics(MemoryTopicId.Builder... topicsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryTopicId>> topics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder topics(Optional<List<MemoryTopicId>> topics);
 
@@ -430,6 +501,9 @@ public Builder clearTopics() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -449,6 +523,9 @@ public Builder clearTtl() {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
@@ -469,6 +546,9 @@ public Builder clearUpdateTime() {
     @JsonProperty("memoryType")
     public abstract Builder memoryType(MemoryType memoryType);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryType> memoryType();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryType(Optional<MemoryType> memoryType);
 
@@ -521,6 +601,9 @@ public Builder structuredContent(MemoryStructuredContent.Builder structuredConte
       return structuredContent(structuredContentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryStructuredContent> structuredContent();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder structuredContent(Optional<MemoryStructuredContent> structuredContent);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBank.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBank.java
index ac5bf62..3029185 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBank.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBank.java
@@ -95,6 +95,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -127,6 +130,9 @@ public Builder managedSemanticMemoryConfig(
       return managedSemanticMemoryConfig(managedSemanticMemoryConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedSemanticMemoryConfig> managedSemanticMemoryConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder managedSemanticMemoryConfig(
         Optional<ManagedSemanticMemoryConfig> managedSemanticMemoryConfig);
@@ -146,6 +152,9 @@ public Builder clearManagedSemanticMemoryConfig() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -164,6 +173,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -182,6 +194,9 @@ public Builder clearDescription() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -200,6 +215,9 @@ public Builder clearCreateTime() {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
@@ -230,6 +248,9 @@ public Builder encryptionSpec(EncryptionSpec.Builder encryptionSpecBuilder) {
       return encryptionSpec(encryptionSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EncryptionSpec> encryptionSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder encryptionSpec(Optional<EncryptionSpec> encryptionSpec);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfig.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfig.java
index 56acc03..dc0efac 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfig.java
@@ -105,6 +105,9 @@ private static Builder create() {
     @JsonProperty("enableThirdPersonMemories")
     public abstract Builder enableThirdPersonMemories(boolean enableThirdPersonMemories);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> enableThirdPersonMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder enableThirdPersonMemories(Optional<Boolean> enableThirdPersonMemories);
 
@@ -122,8 +125,17 @@ public Builder clearEnableThirdPersonMemories() {
      * particular scope.
      */
     @JsonProperty("generateMemoriesExamples")
-    public abstract Builder generateMemoriesExamples(
-        List<MemoryBankCustomizationConfigGenerateMemoriesExample> generateMemoriesExamples);
+    @CanIgnoreReturnValue
+    public Builder generateMemoriesExamples(
+        List<MemoryBankCustomizationConfigGenerateMemoriesExample> generateMemoriesExamples) {
+      if (generateMemoriesExamples().isPresent()) {
+        List<MemoryBankCustomizationConfigGenerateMemoriesExample> list =
+            new java.util.ArrayList<>(generateMemoriesExamples().get());
+        list.addAll(generateMemoriesExamples);
+        return generateMemoriesExamples(java.util.Optional.of(list));
+      }
+      return generateMemoriesExamples(java.util.Optional.of(generateMemoriesExamples));
+    }
 
     /**
      * Setter for generateMemoriesExamples.
@@ -153,6 +165,10 @@ public Builder generateMemoriesExamples(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryBankCustomizationConfigGenerateMemoriesExample>>
+        generateMemoriesExamples();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generateMemoriesExamples(
         Optional<List<MemoryBankCustomizationConfigGenerateMemoriesExample>>
@@ -173,8 +189,16 @@ public Builder clearGenerateMemoriesExamples() {
      * used.
      */
     @JsonProperty("memoryTopics")
-    public abstract Builder memoryTopics(
-        List<MemoryBankCustomizationConfigMemoryTopic> memoryTopics);
+    @CanIgnoreReturnValue
+    public Builder memoryTopics(List<MemoryBankCustomizationConfigMemoryTopic> memoryTopics) {
+      if (memoryTopics().isPresent()) {
+        List<MemoryBankCustomizationConfigMemoryTopic> list =
+            new java.util.ArrayList<>(memoryTopics().get());
+        list.addAll(memoryTopics);
+        return memoryTopics(java.util.Optional.of(list));
+      }
+      return memoryTopics(java.util.Optional.of(memoryTopics));
+    }
 
     /**
      * Setter for memoryTopics.
@@ -204,6 +228,9 @@ public Builder memoryTopics(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryBankCustomizationConfigMemoryTopic>> memoryTopics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryTopics(
         Optional<List<MemoryBankCustomizationConfigMemoryTopic>> memoryTopics);
@@ -224,7 +251,15 @@ public Builder clearMemoryTopics() {
      * have a more specific config. Only one default config is allowed per Memory Bank.
      */
     @JsonProperty("scopeKeys")
-    public abstract Builder scopeKeys(List<String> scopeKeys);
+    @CanIgnoreReturnValue
+    public Builder scopeKeys(List<String> scopeKeys) {
+      if (scopeKeys().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(scopeKeys().get());
+        list.addAll(scopeKeys);
+        return scopeKeys(java.util.Optional.of(list));
+      }
+      return scopeKeys(java.util.Optional.of(scopeKeys));
+    }
 
     /**
      * Setter for scopeKeys.
@@ -239,6 +274,9 @@ public Builder scopeKeys(String... scopeKeys) {
       return scopeKeys(Arrays.asList(scopeKeys));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> scopeKeys();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scopeKeys(Optional<List<String>> scopeKeys);
 
@@ -271,6 +309,9 @@ public Builder consolidationConfig(
       return consolidationConfig(consolidationConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryBankCustomizationConfigConsolidationConfig> consolidationConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder consolidationConfig(
         Optional<MemoryBankCustomizationConfigConsolidationConfig> consolidationConfig);
@@ -292,6 +333,9 @@ public Builder clearConsolidationConfig() {
     @JsonProperty("disableNaturalLanguageMemories")
     public abstract Builder disableNaturalLanguageMemories(boolean disableNaturalLanguageMemories);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableNaturalLanguageMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableNaturalLanguageMemories(
         Optional<Boolean> disableNaturalLanguageMemories);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigConsolidationConfig.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigConsolidationConfig.java
index 468ea38..90b6c24 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigConsolidationConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigConsolidationConfig.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("revisionsPerCandidateCount")
     public abstract Builder revisionsPerCandidateCount(Integer revisionsPerCandidateCount);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> revisionsPerCandidateCount();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionsPerCandidateCount(Optional<Integer> revisionsPerCandidateCount);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExample.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExample.java
index 7e98a9b..b8635ad 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExample.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExample.java
@@ -92,6 +92,10 @@ public Builder conversationSource(
       return conversationSource(conversationSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSource>
+        conversationSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder conversationSource(
         Optional<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSource>
@@ -112,9 +116,18 @@ public Builder clearConversationSource() {
      * generated for the input conversation.
      */
     @JsonProperty("generatedMemories")
-    public abstract Builder generatedMemories(
+    @CanIgnoreReturnValue
+    public Builder generatedMemories(
         List<MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory>
-            generatedMemories);
+            generatedMemories) {
+      if (generatedMemories().isPresent()) {
+        List<MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory> list =
+            new java.util.ArrayList<>(generatedMemories().get());
+        list.addAll(generatedMemories);
+        return generatedMemories(java.util.Optional.of(list));
+      }
+      return generatedMemories(java.util.Optional.of(generatedMemories));
+    }
 
     /**
      * Setter for generatedMemories.
@@ -148,6 +161,10 @@ public Builder generatedMemories(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory>>
+        generatedMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generatedMemories(
         Optional<List<MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory>>
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSource.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSource.java
index 3edce6f..82cff54 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSource.java
@@ -75,8 +75,17 @@ private static Builder create() {
      * <p>events: Optional. Represents the input conversation events for the example.
      */
     @JsonProperty("events")
-    public abstract Builder events(
-        List<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent> events);
+    @CanIgnoreReturnValue
+    public Builder events(
+        List<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent> events) {
+      if (events().isPresent()) {
+        List<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent> list =
+            new java.util.ArrayList<>(events().get());
+        list.addAll(events);
+        return events(java.util.Optional.of(list));
+      }
+      return events(java.util.Optional.of(events));
+    }
 
     /**
      * Setter for events.
@@ -107,6 +116,11 @@ public Builder events(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<
+            List<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent>>
+        events();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder events(
         Optional<List<MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent>>
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent.java
index a4c4e7d..9bd1422 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleConversationSourceEvent.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("content")
     public abstract Builder content(Content content);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Content> content();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder content(Optional<Content> content);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory.java
index d9cb862..35a054c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigGenerateMemoriesExampleGeneratedMemory.java
@@ -82,6 +82,9 @@ private static Builder create() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -100,7 +103,15 @@ public Builder clearFact() {
      * of memory extraction for the custom topic `jargon`.
      */
     @JsonProperty("topics")
-    public abstract Builder topics(List<MemoryTopicId> topics);
+    @CanIgnoreReturnValue
+    public Builder topics(List<MemoryTopicId> topics) {
+      if (topics().isPresent()) {
+        List<MemoryTopicId> list = new java.util.ArrayList<>(topics().get());
+        list.addAll(topics);
+        return topics(java.util.Optional.of(list));
+      }
+      return topics(java.util.Optional.of(topics));
+    }
 
     /**
      * Setter for topics.
@@ -129,6 +140,9 @@ public Builder topics(MemoryTopicId.Builder... topicsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryTopicId>> topics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder topics(Optional<List<MemoryTopicId>> topics);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopic.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopic.java
index c399199..ee880de 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopic.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopic.java
@@ -82,6 +82,10 @@ public Builder customMemoryTopic(
       return customMemoryTopic(customMemoryTopicBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryBankCustomizationConfigMemoryTopicCustomMemoryTopic>
+        customMemoryTopic();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customMemoryTopic(
         Optional<MemoryBankCustomizationConfigMemoryTopicCustomMemoryTopic> customMemoryTopic);
@@ -114,6 +118,10 @@ public Builder managedMemoryTopic(
       return managedMemoryTopic(managedMemoryTopicBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryBankCustomizationConfigMemoryTopicManagedMemoryTopic>
+        managedMemoryTopic();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder managedMemoryTopic(
         Optional<MemoryBankCustomizationConfigMemoryTopicManagedMemoryTopic> managedMemoryTopic);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicCustomMemoryTopic.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicCustomMemoryTopic.java
index 92c0cf4..4f82662 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicCustomMemoryTopic.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicCustomMemoryTopic.java
@@ -71,6 +71,9 @@ private static Builder create() {
     @JsonProperty("label")
     public abstract Builder label(String label);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> label();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder label(Optional<String> label);
 
@@ -90,6 +93,9 @@ public Builder clearLabel() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicManagedMemoryTopic.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicManagedMemoryTopic.java
index 6ff4189..1e74f66 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicManagedMemoryTopic.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankCustomizationConfigMemoryTopicManagedMemoryTopic.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("managedTopicEnum")
     public abstract Builder managedTopicEnum(ManagedTopicEnum managedTopicEnum);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedTopicEnum> managedTopicEnum();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder managedTopicEnum(Optional<ManagedTopicEnum> managedTopicEnum);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankIngestEventsOperation.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankIngestEventsOperation.java
index 825229f..35b4523 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankIngestEventsOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankIngestEventsOperation.java
@@ -89,6 +89,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -108,7 +111,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -129,6 +143,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -145,7 +162,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankOperation.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankOperation.java
index 0005768..c64d42a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryBankOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryBankOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(MemoryBank.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryBank> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<MemoryBank> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryConfig.java
index 06c0b61..a991f17 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryConfig.java
@@ -130,6 +130,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -148,6 +151,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -166,6 +172,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -184,6 +193,9 @@ public Builder clearDescription() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -204,6 +216,9 @@ public Builder clearWaitForCompletion() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -223,6 +238,9 @@ public Builder clearTtl() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -242,6 +260,9 @@ public Builder clearExpireTime() {
     @JsonProperty("revisionExpireTime")
     public abstract Builder revisionExpireTime(Instant revisionExpireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> revisionExpireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionExpireTime(Optional<Instant> revisionExpireTime);
 
@@ -261,6 +282,9 @@ public Builder clearRevisionExpireTime() {
     @JsonProperty("revisionTtl")
     public abstract Builder revisionTtl(Duration revisionTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> revisionTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionTtl(Optional<Duration> revisionTtl);
 
@@ -280,6 +304,9 @@ public Builder clearRevisionTtl() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
@@ -296,7 +323,15 @@ public Builder clearDisableMemoryRevisions() {
      * <p>topics: Optional. The topics of the memory.
      */
     @JsonProperty("topics")
-    public abstract Builder topics(List<MemoryTopicId> topics);
+    @CanIgnoreReturnValue
+    public Builder topics(List<MemoryTopicId> topics) {
+      if (topics().isPresent()) {
+        List<MemoryTopicId> list = new java.util.ArrayList<>(topics().get());
+        list.addAll(topics);
+        return topics(java.util.Optional.of(list));
+      }
+      return topics(java.util.Optional.of(topics));
+    }
 
     /**
      * Setter for topics.
@@ -321,6 +356,9 @@ public Builder topics(MemoryTopicId.Builder... topicsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryTopicId>> topics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder topics(Optional<List<MemoryTopicId>> topics);
 
@@ -338,7 +376,18 @@ public Builder clearTopics() {
      * when creating, updating, or generating the Memory. It was not generated by Memory Bank.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, MemoryMetadataValue> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, MemoryMetadataValue> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, MemoryMetadataValue> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, MemoryMetadataValue>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, MemoryMetadataValue>> metadata);
@@ -361,6 +410,9 @@ public Builder clearMetadata() {
     @JsonProperty("memoryId")
     public abstract Builder memoryId(String memoryId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> memoryId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryId(Optional<String> memoryId);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryConjunctionFilter.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryConjunctionFilter.java
index 8e438ae..fc6fcf0 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryConjunctionFilter.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryConjunctionFilter.java
@@ -62,7 +62,15 @@ private static Builder create() {
      * <p>filters: Represents filters that will be combined using AND logic.
      */
     @JsonProperty("filters")
-    public abstract Builder filters(List<MemoryFilter> filters);
+    @CanIgnoreReturnValue
+    public Builder filters(List<MemoryFilter> filters) {
+      if (filters().isPresent()) {
+        List<MemoryFilter> list = new java.util.ArrayList<>(filters().get());
+        list.addAll(filters);
+        return filters(java.util.Optional.of(list));
+      }
+      return filters(java.util.Optional.of(filters));
+    }
 
     /**
      * Setter for filters.
@@ -87,6 +95,9 @@ public Builder filters(MemoryFilter.Builder... filtersBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryFilter>> filters();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filters(Optional<List<MemoryFilter>> filters);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryFilter.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryFilter.java
index 78187fd..3cbb438 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryFilter.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryFilter.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("key")
     public abstract Builder key(String key);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> key();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder key(Optional<String> key);
 
@@ -94,6 +97,9 @@ public Builder clearKey() {
     @JsonProperty("negate")
     public abstract Builder negate(boolean negate);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> negate();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder negate(Optional<Boolean> negate);
 
@@ -112,6 +118,9 @@ public Builder clearNegate() {
     @JsonProperty("op")
     public abstract Builder op(Operator op);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Operator> op();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder op(Optional<Operator> op);
 
@@ -160,6 +169,9 @@ public Builder value(MemoryMetadataValue.Builder valueBuilder) {
       return value(valueBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryMetadataValue> value();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder value(Optional<MemoryMetadataValue> value);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfig.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfig.java
index bd3bd50..5d434b2 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfig.java
@@ -79,6 +79,9 @@ public Builder generationRule(
       return generationRule(generationRuleBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryGenerationTriggerConfigGenerationTriggerRule> generationRule();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generationRule(
         Optional<MemoryGenerationTriggerConfigGenerationTriggerRule> generationRule);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfigGenerationTriggerRule.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfigGenerationTriggerRule.java
index 7c21c8b..dd081d8 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfigGenerationTriggerRule.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryGenerationTriggerConfigGenerationTriggerRule.java
@@ -83,6 +83,9 @@ private static Builder create() {
     @JsonProperty("eventCount")
     public abstract Builder eventCount(Integer eventCount);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> eventCount();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder eventCount(Optional<Integer> eventCount);
 
@@ -102,6 +105,9 @@ public Builder clearEventCount() {
     @JsonProperty("fixedInterval")
     public abstract Builder fixedInterval(Duration fixedInterval);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> fixedInterval();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fixedInterval(Optional<Duration> fixedInterval);
 
@@ -122,6 +128,9 @@ public Builder clearFixedInterval() {
     @JsonProperty("idleDuration")
     public abstract Builder idleDuration(Duration idleDuration);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> idleDuration();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder idleDuration(Optional<Duration> idleDuration);
 
@@ -141,6 +150,9 @@ public Builder clearIdleDuration() {
     @JsonProperty("overlapEventCount")
     public abstract Builder overlapEventCount(Integer overlapEventCount);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> overlapEventCount();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder overlapEventCount(Optional<Integer> overlapEventCount);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryMetadataValue.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryMetadataValue.java
index bf97123..152e11e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryMetadataValue.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryMetadataValue.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("boolValue")
     public abstract Builder boolValue(boolean boolValue);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> boolValue();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder boolValue(Optional<Boolean> boolValue);
 
@@ -94,6 +97,9 @@ public Builder clearBoolValue() {
     @JsonProperty("doubleValue")
     public abstract Builder doubleValue(Double doubleValue);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Double> doubleValue();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder doubleValue(Optional<Double> doubleValue);
 
@@ -112,6 +118,9 @@ public Builder clearDoubleValue() {
     @JsonProperty("stringValue")
     public abstract Builder stringValue(String stringValue);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> stringValue();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder stringValue(Optional<String> stringValue);
 
@@ -131,6 +140,9 @@ public Builder clearStringValue() {
     @JsonProperty("timestampValue")
     public abstract Builder timestampValue(Instant timestampValue);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> timestampValue();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder timestampValue(Optional<Instant> timestampValue);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryOperation.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryOperation.java
index d0c1dd6..e08ced5 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(Memory.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Memory> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<Memory> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryProfile.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryProfile.java
index d9a2f9a..5820afd 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryProfile.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryProfile.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("schemaId")
     public abstract Builder schemaId(String schemaId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> schemaId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder schemaId(Optional<String> schemaId);
 
@@ -85,7 +88,18 @@ public Builder clearSchemaId() {
      * <p>profile: Represents the profile data.
      */
     @JsonProperty("profile")
-    public abstract Builder profile(Map<String, Object> profile);
+    @CanIgnoreReturnValue
+    public Builder profile(Map<String, Object> profile) {
+      if (profile().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(profile().get());
+        map.putAll(profile);
+        return profile(java.util.Optional.of(map));
+      }
+      return profile(java.util.Optional.of(profile));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> profile();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder profile(Optional<Map<String, Object>> profile);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryRevision.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryRevision.java
index bc59566..da14204 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryRevision.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryRevision.java
@@ -105,6 +105,9 @@ private static Builder create() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -124,6 +127,9 @@ public Builder clearCreateTime() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -142,7 +148,16 @@ public Builder clearExpireTime() {
      * used to modify an existing Memory via Consolidation.
      */
     @JsonProperty("extractedMemories")
-    public abstract Builder extractedMemories(List<IntermediateExtractedMemory> extractedMemories);
+    @CanIgnoreReturnValue
+    public Builder extractedMemories(List<IntermediateExtractedMemory> extractedMemories) {
+      if (extractedMemories().isPresent()) {
+        List<IntermediateExtractedMemory> list =
+            new java.util.ArrayList<>(extractedMemories().get());
+        list.addAll(extractedMemories);
+        return extractedMemories(java.util.Optional.of(list));
+      }
+      return extractedMemories(java.util.Optional.of(extractedMemories));
+    }
 
     /**
      * Setter for extractedMemories.
@@ -172,6 +187,9 @@ public Builder extractedMemories(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<IntermediateExtractedMemory>> extractedMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder extractedMemories(
         Optional<List<IntermediateExtractedMemory>> extractedMemories);
@@ -192,6 +210,9 @@ public Builder clearExtractedMemories() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -210,7 +231,18 @@ public Builder clearFact() {
      * `GenerateMemoriesRequest.revision_labels`.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -231,6 +263,9 @@ public Builder clearLabels() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -248,7 +283,18 @@ public Builder clearName() {
      * revision creation.
      */
     @JsonProperty("structuredData")
-    public abstract Builder structuredData(Map<String, Object> structuredData);
+    @CanIgnoreReturnValue
+    public Builder structuredData(Map<String, Object> structuredData) {
+      if (structuredData().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(structuredData().get());
+        map.putAll(structuredData);
+        return structuredData(java.util.Optional.of(map));
+      }
+      return structuredData(java.util.Optional.of(structuredData));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> structuredData();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder structuredData(Optional<Map<String, Object>> structuredData);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryStructuredContent.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryStructuredContent.java
index a19996d..89d249e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryStructuredContent.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryStructuredContent.java
@@ -63,7 +63,18 @@ private static Builder create() {
      * <p>data: Required. Represents the structured value of the memory.
      */
     @JsonProperty("data")
-    public abstract Builder data(Map<String, Object> data);
+    @CanIgnoreReturnValue
+    public Builder data(Map<String, Object> data) {
+      if (data().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(data().get());
+        map.putAll(data);
+        return data(java.util.Optional.of(map));
+      }
+      return data(java.util.Optional.of(data));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> data();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder data(Optional<Map<String, Object>> data);
@@ -83,6 +94,9 @@ public Builder clearData() {
     @JsonProperty("schemaId")
     public abstract Builder schemaId(String schemaId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> schemaId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder schemaId(Optional<String> schemaId);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/MemoryTopicId.java b/src/main/java/com/google/cloud/agentplatform/types/MemoryTopicId.java
index 58bc383..d8d8022 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/MemoryTopicId.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/MemoryTopicId.java
@@ -64,6 +64,9 @@ private static Builder create() {
     @JsonProperty("customMemoryTopicLabel")
     public abstract Builder customMemoryTopicLabel(String customMemoryTopicLabel);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> customMemoryTopicLabel();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customMemoryTopicLabel(Optional<String> customMemoryTopicLabel);
 
@@ -82,6 +85,9 @@ public Builder clearCustomMemoryTopicLabel() {
     @JsonProperty("managedMemoryTopic")
     public abstract Builder managedMemoryTopic(ManagedTopicEnum managedMemoryTopic);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ManagedTopicEnum> managedMemoryTopic();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder managedMemoryTopic(Optional<ManagedTopicEnum> managedMemoryTopic);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/Metadata.java b/src/main/java/com/google/cloud/agentplatform/types/Metadata.java
index beb5727..ebdfd38 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/Metadata.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/Metadata.java
@@ -64,7 +64,18 @@ private static Builder create() {
      * the keys.
      */
     @JsonProperty("attributes")
-    public abstract Builder attributes(Map<String, byte[]> attributes);
+    @CanIgnoreReturnValue
+    public Builder attributes(Map<String, byte[]> attributes) {
+      if (attributes().isPresent()) {
+        Map<String, byte[]> map = new java.util.HashMap<>(attributes().get());
+        map.putAll(attributes);
+        return attributes(java.util.Optional.of(map));
+      }
+      return attributes(java.util.Optional.of(attributes));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, byte[]>> attributes();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder attributes(Optional<Map<String, byte[]>> attributes);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/PscInterfaceConfig.java b/src/main/java/com/google/cloud/agentplatform/types/PscInterfaceConfig.java
index 67fc504..a8865f0 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/PscInterfaceConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/PscInterfaceConfig.java
@@ -81,7 +81,15 @@ private static Builder create() {
      * Vertex AI Service Agent on the target project.
      */
     @JsonProperty("dnsPeeringConfigs")
-    public abstract Builder dnsPeeringConfigs(List<DnsPeeringConfig> dnsPeeringConfigs);
+    @CanIgnoreReturnValue
+    public Builder dnsPeeringConfigs(List<DnsPeeringConfig> dnsPeeringConfigs) {
+      if (dnsPeeringConfigs().isPresent()) {
+        List<DnsPeeringConfig> list = new java.util.ArrayList<>(dnsPeeringConfigs().get());
+        list.addAll(dnsPeeringConfigs);
+        return dnsPeeringConfigs(java.util.Optional.of(list));
+      }
+      return dnsPeeringConfigs(java.util.Optional.of(dnsPeeringConfigs));
+    }
 
     /**
      * Setter for dnsPeeringConfigs.
@@ -112,6 +120,9 @@ public Builder dnsPeeringConfigs(DnsPeeringConfig.Builder... dnsPeeringConfigsBu
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<DnsPeeringConfig>> dnsPeeringConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder dnsPeeringConfigs(Optional<List<DnsPeeringConfig>> dnsPeeringConfigs);
 
@@ -135,6 +146,9 @@ public Builder clearDnsPeeringConfigs() {
     @JsonProperty("networkAttachment")
     public abstract Builder networkAttachment(String networkAttachment);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> networkAttachment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder networkAttachment(Optional<String> networkAttachment);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesConfig.java
index 17dbf58..157fe67 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesConfig.java
@@ -65,6 +65,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -83,6 +86,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesOperation.java b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesOperation.java
index 7a164e4..b2cd4ba 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesOperation.java
@@ -91,6 +91,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -110,7 +113,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -131,6 +145,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -147,7 +164,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -177,6 +205,9 @@ public Builder response(PurgeMemoriesResponse.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PurgeMemoriesResponse> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<PurgeMemoriesResponse> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesRequestParameters.java
index bf072b8..3ef690d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesRequestParameters.java
@@ -100,6 +100,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -119,6 +122,9 @@ public Builder clearName() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
@@ -143,7 +149,15 @@ public Builder clearFilter() {
      * (metadata.label = "travel" AND metadata.author = "agent 321"))`.
      */
     @JsonProperty("filterGroups")
-    public abstract Builder filterGroups(List<MemoryConjunctionFilter> filterGroups);
+    @CanIgnoreReturnValue
+    public Builder filterGroups(List<MemoryConjunctionFilter> filterGroups) {
+      if (filterGroups().isPresent()) {
+        List<MemoryConjunctionFilter> list = new java.util.ArrayList<>(filterGroups().get());
+        list.addAll(filterGroups);
+        return filterGroups(java.util.Optional.of(list));
+      }
+      return filterGroups(java.util.Optional.of(filterGroups));
+    }
 
     /**
      * Setter for filterGroups.
@@ -184,6 +198,9 @@ public Builder filterGroups(MemoryConjunctionFilter.Builder... filterGroupsBuild
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryConjunctionFilter>> filterGroups();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filterGroups(Optional<List<MemoryConjunctionFilter>> filterGroups);
 
@@ -203,6 +220,9 @@ public Builder clearFilterGroups() {
     @JsonProperty("force")
     public abstract Builder force(boolean force);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> force();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder force(Optional<Boolean> force);
 
@@ -231,6 +251,9 @@ public Builder config(PurgeMemoriesConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PurgeMemoriesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<PurgeMemoriesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesResponse.java
index 4314b19..5b13dbf 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/PurgeMemoriesResponse.java
@@ -60,6 +60,9 @@ private static Builder create() {
     @JsonProperty("purgeCount")
     public abstract Builder purgeCount(Integer purgeCount);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> purgeCount();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder purgeCount(Optional<Integer> purgeCount);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineConfig.java
index b82f273..18adfd5 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineConfig.java
@@ -74,6 +74,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -92,6 +95,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("classMethod")
     public abstract Builder classMethod(String classMethod);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> classMethod();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder classMethod(Optional<String> classMethod);
 
@@ -108,7 +114,18 @@ public Builder clearClassMethod() {
      * <p>input: The input to the class method.
      */
     @JsonProperty("input")
-    public abstract Builder input(Map<String, Object> input);
+    @CanIgnoreReturnValue
+    public Builder input(Map<String, Object> input) {
+      if (input().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(input().get());
+        map.putAll(input);
+        return input(java.util.Optional.of(map));
+      }
+      return input(java.util.Optional.of(input));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> input();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder input(Optional<Map<String, Object>> input);
@@ -128,6 +145,9 @@ public Builder clearInput() {
     @JsonProperty("includeAllFields")
     public abstract Builder includeAllFields(boolean includeAllFields);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> includeAllFields();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder includeAllFields(Optional<Boolean> includeAllFields);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineRequestParameters.java
index 02df5f8..4427e64 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/QueryAgentEngineRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(QueryAgentEngineConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<QueryAgentEngineConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<QueryAgentEngineConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/QueryReasoningEngineResponse.java b/src/main/java/com/google/cloud/agentplatform/types/QueryReasoningEngineResponse.java
index b1ca812..cb7b9dd 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/QueryReasoningEngineResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/QueryReasoningEngineResponse.java
@@ -62,6 +62,9 @@ private static Builder create() {
     @JsonProperty("output")
     public abstract Builder output(Object output);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Object> output();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder output(Optional<Object> output);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngine.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngine.java
index c440a1a..6323d9c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngine.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngine.java
@@ -124,6 +124,9 @@ public Builder encryptionSpec(EncryptionSpec.Builder encryptionSpecBuilder) {
       return encryptionSpec(encryptionSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EncryptionSpec> encryptionSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder encryptionSpec(Optional<EncryptionSpec> encryptionSpec);
 
@@ -154,6 +157,9 @@ public Builder contextSpec(ReasoningEngineContextSpec.Builder contextSpecBuilder
       return contextSpec(contextSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpec> contextSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder contextSpec(Optional<ReasoningEngineContextSpec> contextSpec);
 
@@ -172,6 +178,9 @@ public Builder clearContextSpec() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -190,6 +199,9 @@ public Builder clearCreateTime() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -208,6 +220,9 @@ public Builder clearDescription() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -227,6 +242,9 @@ public Builder clearDisplayName() {
     @JsonProperty("etag")
     public abstract Builder etag(String etag);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> etag();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder etag(Optional<String> etag);
 
@@ -243,7 +261,18 @@ public Builder clearEtag() {
      * <p>labels: Labels for the ReasoningEngine.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -264,6 +293,9 @@ public Builder clearLabels() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -292,6 +324,9 @@ public Builder spec(ReasoningEngineSpec.Builder specBuilder) {
       return spec(specBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpec> spec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder spec(Optional<ReasoningEngineSpec> spec);
 
@@ -310,6 +345,9 @@ public Builder clearSpec() {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
@@ -338,6 +376,9 @@ public Builder trafficConfig(ReasoningEngineTrafficConfig.Builder trafficConfigB
       return trafficConfig(trafficConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineTrafficConfig> trafficConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder trafficConfig(Optional<ReasoningEngineTrafficConfig> trafficConfig);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpec.java
index 5736d4d..3106e57 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpec.java
@@ -74,6 +74,9 @@ public Builder memoryBankConfig(
       return memoryBankConfig(memoryBankConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpecMemoryBankConfig> memoryBankConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryBankConfig(
         Optional<ReasoningEngineContextSpecMemoryBankConfig> memoryBankConfig);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfig.java
index e4301a4..06d05d6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfig.java
@@ -95,8 +95,16 @@ private static Builder create() {
      * for a particular scope.
      */
     @JsonProperty("customizationConfigs")
-    public abstract Builder customizationConfigs(
-        List<MemoryBankCustomizationConfig> customizationConfigs);
+    @CanIgnoreReturnValue
+    public Builder customizationConfigs(List<MemoryBankCustomizationConfig> customizationConfigs) {
+      if (customizationConfigs().isPresent()) {
+        List<MemoryBankCustomizationConfig> list =
+            new java.util.ArrayList<>(customizationConfigs().get());
+        list.addAll(customizationConfigs);
+        return customizationConfigs(java.util.Optional.of(list));
+      }
+      return customizationConfigs(java.util.Optional.of(customizationConfigs));
+    }
 
     /**
      * Setter for customizationConfigs.
@@ -124,6 +132,9 @@ public Builder customizationConfigs(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryBankCustomizationConfig>> customizationConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customizationConfigs(
         Optional<List<MemoryBankCustomizationConfig>> customizationConfigs);
@@ -144,6 +155,9 @@ public Builder clearCustomizationConfigs() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
@@ -177,6 +191,10 @@ public Builder generationConfig(
       return generationConfig(generationConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpecMemoryBankConfigGenerationConfig>
+        generationConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generationConfig(
         Optional<ReasoningEngineContextSpecMemoryBankConfigGenerationConfig> generationConfig);
@@ -213,6 +231,10 @@ public Builder similaritySearchConfig(
       return similaritySearchConfig(similaritySearchConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpecMemoryBankConfigSimilaritySearchConfig>
+        similaritySearchConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder similaritySearchConfig(
         Optional<ReasoningEngineContextSpecMemoryBankConfigSimilaritySearchConfig>
@@ -249,6 +271,9 @@ public Builder ttlConfig(
       return ttlConfig(ttlConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpecMemoryBankConfigTtlConfig> ttlConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttlConfig(
         Optional<ReasoningEngineContextSpecMemoryBankConfigTtlConfig> ttlConfig);
@@ -267,8 +292,16 @@ public Builder clearTtlConfig() {
      * particular scope.
      */
     @JsonProperty("structuredMemoryConfigs")
-    public abstract Builder structuredMemoryConfigs(
-        List<StructuredMemoryConfig> structuredMemoryConfigs);
+    @CanIgnoreReturnValue
+    public Builder structuredMemoryConfigs(List<StructuredMemoryConfig> structuredMemoryConfigs) {
+      if (structuredMemoryConfigs().isPresent()) {
+        List<StructuredMemoryConfig> list =
+            new java.util.ArrayList<>(structuredMemoryConfigs().get());
+        list.addAll(structuredMemoryConfigs);
+        return structuredMemoryConfigs(java.util.Optional.of(list));
+      }
+      return structuredMemoryConfigs(java.util.Optional.of(structuredMemoryConfigs));
+    }
 
     /**
      * Setter for structuredMemoryConfigs.
@@ -296,6 +329,9 @@ public Builder structuredMemoryConfigs(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<StructuredMemoryConfig>> structuredMemoryConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder structuredMemoryConfigs(
         Optional<List<StructuredMemoryConfig>> structuredMemoryConfigs);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigGenerationConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigGenerationConfig.java
index 652c1ac..334962b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigGenerationConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigGenerationConfig.java
@@ -75,6 +75,9 @@ private static Builder create() {
     @JsonProperty("model")
     public abstract Builder model(String model);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> model();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder model(Optional<String> model);
 
@@ -107,6 +110,9 @@ public Builder generationTriggerConfig(
       return generationTriggerConfig(generationTriggerConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryGenerationTriggerConfig> generationTriggerConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generationTriggerConfig(
         Optional<MemoryGenerationTriggerConfig> generationTriggerConfig);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigSimilaritySearchConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigSimilaritySearchConfig.java
index 30d7f4f..ff6e46e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigSimilaritySearchConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigSimilaritySearchConfig.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("embeddingModel")
     public abstract Builder embeddingModel(String embeddingModel);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> embeddingModel();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder embeddingModel(Optional<String> embeddingModel);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfig.java
index b125376..5a0a2fa 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfig.java
@@ -84,6 +84,9 @@ private static Builder create() {
     @JsonProperty("defaultTtl")
     public abstract Builder defaultTtl(Duration defaultTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> defaultTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder defaultTtl(Optional<Duration> defaultTtl);
 
@@ -117,6 +120,10 @@ public Builder granularTtlConfig(
       return granularTtlConfig(granularTtlConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpecMemoryBankConfigTtlConfigGranularTtlConfig>
+        granularTtlConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder granularTtlConfig(
         Optional<ReasoningEngineContextSpecMemoryBankConfigTtlConfigGranularTtlConfig>
@@ -139,6 +146,9 @@ public Builder clearGranularTtlConfig() {
     @JsonProperty("memoryRevisionDefaultTtl")
     public abstract Builder memoryRevisionDefaultTtl(Duration memoryRevisionDefaultTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> memoryRevisionDefaultTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryRevisionDefaultTtl(Optional<Duration> memoryRevisionDefaultTtl);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfigGranularTtlConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfigGranularTtlConfig.java
index 5c0a706..c6b7bba 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfigGranularTtlConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineContextSpecMemoryBankConfigTtlConfigGranularTtlConfig.java
@@ -90,6 +90,9 @@ private static Builder create() {
     @JsonProperty("createTtl")
     public abstract Builder createTtl(Duration createTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> createTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTtl(Optional<Duration> createTtl);
 
@@ -109,6 +112,9 @@ public Builder clearCreateTtl() {
     @JsonProperty("generateCreatedTtl")
     public abstract Builder generateCreatedTtl(Duration generateCreatedTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> generateCreatedTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generateCreatedTtl(Optional<Duration> generateCreatedTtl);
 
@@ -129,6 +135,9 @@ public Builder clearGenerateCreatedTtl() {
     @JsonProperty("generateUpdatedTtl")
     public abstract Builder generateUpdatedTtl(Duration generateUpdatedTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> generateUpdatedTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder generateUpdatedTtl(Optional<Duration> generateUpdatedTtl);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpec.java
index d1ea817..8b0b692 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpec.java
@@ -125,7 +125,18 @@ private static Builder create() {
      * https://a2a-protocol.org/latest/specification/#5-agent-discovery-the-agent-card.
      */
     @JsonProperty("agentCard")
-    public abstract Builder agentCard(Map<String, Object> agentCard);
+    @CanIgnoreReturnValue
+    public Builder agentCard(Map<String, Object> agentCard) {
+      if (agentCard().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(agentCard().get());
+        map.putAll(agentCard);
+        return agentCard(java.util.Optional.of(map));
+      }
+      return agentCard(java.util.Optional.of(agentCard));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> agentCard();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentCard(Optional<Map<String, Object>> agentCard);
@@ -146,6 +157,9 @@ public Builder clearAgentCard() {
     @JsonProperty("agentFramework")
     public abstract Builder agentFramework(String agentFramework);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> agentFramework();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentFramework(Optional<String> agentFramework);
 
@@ -163,7 +177,15 @@ public Builder clearAgentFramework() {
      * format.
      */
     @JsonProperty("classMethods")
-    public abstract Builder classMethods(List<Map<String, Object>> classMethods);
+    @CanIgnoreReturnValue
+    public Builder classMethods(List<Map<String, Object>> classMethods) {
+      if (classMethods().isPresent()) {
+        List<Map<String, Object>> list = new java.util.ArrayList<>(classMethods().get());
+        list.addAll(classMethods);
+        return classMethods(java.util.Optional.of(list));
+      }
+      return classMethods(java.util.Optional.of(classMethods));
+    }
 
     /**
      * Setter for classMethods.
@@ -176,6 +198,9 @@ public Builder classMethods(Map<String, Object>... classMethods) {
       return classMethods(Arrays.asList(classMethods));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Map<String, Object>>> classMethods();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder classMethods(Optional<List<Map<String, Object>>> classMethods);
 
@@ -204,6 +229,9 @@ public Builder deploymentSpec(ReasoningEngineSpecDeploymentSpec.Builder deployme
       return deploymentSpec(deploymentSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpec> deploymentSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder deploymentSpec(Optional<ReasoningEngineSpecDeploymentSpec> deploymentSpec);
 
@@ -227,6 +255,9 @@ public Builder clearDeploymentSpec() {
     @JsonProperty("effectiveIdentity")
     public abstract Builder effectiveIdentity(String effectiveIdentity);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> effectiveIdentity();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder effectiveIdentity(Optional<String> effectiveIdentity);
 
@@ -247,6 +278,9 @@ public Builder clearEffectiveIdentity() {
     @JsonProperty("identityType")
     public abstract Builder identityType(IdentityType identityType);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<IdentityType> identityType();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder identityType(Optional<IdentityType> identityType);
 
@@ -307,6 +341,9 @@ public Builder packageSpec(ReasoningEngineSpecPackageSpec.Builder packageSpecBui
       return packageSpec(packageSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecPackageSpec> packageSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder packageSpec(Optional<ReasoningEngineSpecPackageSpec> packageSpec);
 
@@ -328,6 +365,9 @@ public Builder clearPackageSpec() {
     @JsonProperty("serviceAccount")
     public abstract Builder serviceAccount(String serviceAccount);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> serviceAccount();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder serviceAccount(Optional<String> serviceAccount);
 
@@ -356,6 +396,9 @@ public Builder sourceCodeSpec(ReasoningEngineSpecSourceCodeSpec.Builder sourceCo
       return sourceCodeSpec(sourceCodeSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpec> sourceCodeSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourceCodeSpec(Optional<ReasoningEngineSpecSourceCodeSpec> sourceCodeSpec);
 
@@ -384,6 +427,9 @@ public Builder containerSpec(ReasoningEngineSpecContainerSpec.Builder containerS
       return containerSpec(containerSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecContainerSpec> containerSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder containerSpec(Optional<ReasoningEngineSpecContainerSpec> containerSpec);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecContainerSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecContainerSpec.java
index 8be24ea..37724d3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecContainerSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecContainerSpec.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("imageUri")
     public abstract Builder imageUri(String imageUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> imageUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder imageUri(Optional<String> imageUri);
 
@@ -91,6 +94,9 @@ public Builder clearImageUri() {
     @JsonProperty("port")
     public abstract Builder port(Integer port);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> port();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder port(Optional<Integer> port);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpec.java
index 4dca71f..b3d9236 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpec.java
@@ -133,6 +133,9 @@ private static Builder create() {
     @JsonProperty("agentServerMode")
     public abstract Builder agentServerMode(AgentServerMode agentServerMode);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<AgentServerMode> agentServerMode();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentServerMode(Optional<AgentServerMode> agentServerMode);
 
@@ -172,6 +175,9 @@ public Builder agentServerMode(String agentServerMode) {
     @JsonProperty("containerConcurrency")
     public abstract Builder containerConcurrency(Integer containerConcurrency);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> containerConcurrency();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder containerConcurrency(Optional<Integer> containerConcurrency);
 
@@ -189,7 +195,15 @@ public Builder clearContainerConcurrency() {
      * environment variables can be updated through the UpdateReasoningEngine API.
      */
     @JsonProperty("env")
-    public abstract Builder env(List<EnvVar> env);
+    @CanIgnoreReturnValue
+    public Builder env(List<EnvVar> env) {
+      if (env().isPresent()) {
+        List<EnvVar> list = new java.util.ArrayList<>(env().get());
+        list.addAll(env);
+        return env(java.util.Optional.of(list));
+      }
+      return env(java.util.Optional.of(env));
+    }
 
     /**
      * Setter for env.
@@ -216,6 +230,9 @@ public Builder env(EnvVar.Builder... envBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<EnvVar>> env();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder env(Optional<List<EnvVar>> env);
 
@@ -236,6 +253,9 @@ public Builder clearEnv() {
     @JsonProperty("maxInstances")
     public abstract Builder maxInstances(Integer maxInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> maxInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder maxInstances(Optional<Integer> maxInstances);
 
@@ -255,6 +275,9 @@ public Builder clearMaxInstances() {
     @JsonProperty("minInstances")
     public abstract Builder minInstances(Integer minInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> minInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder minInstances(Optional<Integer> minInstances);
 
@@ -283,6 +306,9 @@ public Builder pscInterfaceConfig(PscInterfaceConfig.Builder pscInterfaceConfigB
       return pscInterfaceConfig(pscInterfaceConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PscInterfaceConfig> pscInterfaceConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pscInterfaceConfig(Optional<PscInterfaceConfig> pscInterfaceConfig);
 
@@ -304,7 +330,18 @@ public Builder clearPscInterfaceConfig() {
      * https://cloud.google.com/run/docs/configuring/memory-limits
      */
     @JsonProperty("resourceLimits")
-    public abstract Builder resourceLimits(Map<String, String> resourceLimits);
+    @CanIgnoreReturnValue
+    public Builder resourceLimits(Map<String, String> resourceLimits) {
+      if (resourceLimits().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(resourceLimits().get());
+        map.putAll(resourceLimits);
+        return resourceLimits(java.util.Optional.of(map));
+      }
+      return resourceLimits(java.util.Optional.of(resourceLimits));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> resourceLimits();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder resourceLimits(Optional<Map<String, String>> resourceLimits);
@@ -324,7 +361,15 @@ public Builder clearResourceLimits() {
      * (roles/secretmanager.secretAccessor) to AI Platform Reasoning Engine Service Agent.
      */
     @JsonProperty("secretEnv")
-    public abstract Builder secretEnv(List<SecretEnvVar> secretEnv);
+    @CanIgnoreReturnValue
+    public Builder secretEnv(List<SecretEnvVar> secretEnv) {
+      if (secretEnv().isPresent()) {
+        List<SecretEnvVar> list = new java.util.ArrayList<>(secretEnv().get());
+        list.addAll(secretEnv);
+        return secretEnv(java.util.Optional.of(list));
+      }
+      return secretEnv(java.util.Optional.of(secretEnv));
+    }
 
     /**
      * Setter for secretEnv.
@@ -353,6 +398,9 @@ public Builder secretEnv(SecretEnvVar.Builder... secretEnvBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SecretEnvVar>> secretEnv();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder secretEnv(Optional<List<SecretEnvVar>> secretEnv);
 
@@ -385,6 +433,9 @@ public Builder agentGatewayConfig(
       return agentGatewayConfig(agentGatewayConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentGatewayConfig(
         Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig);
@@ -418,6 +469,9 @@ public Builder keepAliveProbe(KeepAliveProbe.Builder keepAliveProbeBuilder) {
       return keepAliveProbe(keepAliveProbeBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<KeepAliveProbe> keepAliveProbe();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder keepAliveProbe(Optional<KeepAliveProbe> keepAliveProbe);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfig.java
index 1de463e..12f6c33 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfig.java
@@ -91,6 +91,10 @@ public Builder agentToAnywhereConfig(
       return agentToAnywhereConfig(agentToAnywhereConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfigAgentToAnywhereConfig>
+        agentToAnywhereConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentToAnywhereConfig(
         Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfigAgentToAnywhereConfig>
@@ -126,6 +130,10 @@ public Builder clientToAgentConfig(
       return clientToAgentConfig(clientToAgentConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfigClientToAgentConfig>
+        clientToAgentConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder clientToAgentConfig(
         Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfigClientToAgentConfig>
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigAgentToAnywhereConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigAgentToAnywhereConfig.java
index 79205cc..a755669 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigAgentToAnywhereConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigAgentToAnywhereConfig.java
@@ -78,6 +78,9 @@ private static Builder create() {
     @JsonProperty("agentGateway")
     public abstract Builder agentGateway(String agentGateway);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> agentGateway();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentGateway(Optional<String> agentGateway);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigClientToAgentConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigClientToAgentConfig.java
index ea093fc..05a3619 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigClientToAgentConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecDeploymentSpecAgentGatewayConfigClientToAgentConfig.java
@@ -77,6 +77,9 @@ private static Builder create() {
     @JsonProperty("agentGateway")
     public abstract Builder agentGateway(String agentGateway);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> agentGateway();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentGateway(Optional<String> agentGateway);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecPackageSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecPackageSpec.java
index 942d9b8..e89be36 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecPackageSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecPackageSpec.java
@@ -78,6 +78,9 @@ private static Builder create() {
     @JsonProperty("dependencyFilesGcsUri")
     public abstract Builder dependencyFilesGcsUri(String dependencyFilesGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> dependencyFilesGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder dependencyFilesGcsUri(Optional<String> dependencyFilesGcsUri);
 
@@ -96,6 +99,9 @@ public Builder clearDependencyFilesGcsUri() {
     @JsonProperty("pickleObjectGcsUri")
     public abstract Builder pickleObjectGcsUri(String pickleObjectGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pickleObjectGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pickleObjectGcsUri(Optional<String> pickleObjectGcsUri);
 
@@ -115,6 +121,9 @@ public Builder clearPickleObjectGcsUri() {
     @JsonProperty("pythonVersion")
     public abstract Builder pythonVersion(String pythonVersion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pythonVersion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pythonVersion(Optional<String> pythonVersion);
 
@@ -133,6 +142,9 @@ public Builder clearPythonVersion() {
     @JsonProperty("requirementsGcsUri")
     public abstract Builder requirementsGcsUri(String requirementsGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> requirementsGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requirementsGcsUri(Optional<String> requirementsGcsUri);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpec.java
index 782f6c5..372c8a1 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpec.java
@@ -92,6 +92,9 @@ public Builder agentConfigSource(
       return agentConfigSource(agentConfigSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecAgentConfigSource> agentConfigSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentConfigSource(
         Optional<ReasoningEngineSpecSourceCodeSpecAgentConfigSource> agentConfigSource);
@@ -124,6 +127,10 @@ public Builder developerConnectSource(
       return developerConnectSource(developerConnectSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectSource>
+        developerConnectSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder developerConnectSource(
         Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectSource> developerConnectSource);
@@ -153,6 +160,9 @@ public Builder imageSpec(ReasoningEngineSpecSourceCodeSpecImageSpec.Builder imag
       return imageSpec(imageSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecImageSpec> imageSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder imageSpec(Optional<ReasoningEngineSpecSourceCodeSpecImageSpec> imageSpec);
 
@@ -183,6 +193,9 @@ public Builder inlineSource(
       return inlineSource(inlineSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecInlineSource> inlineSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder inlineSource(
         Optional<ReasoningEngineSpecSourceCodeSpecInlineSource> inlineSource);
@@ -213,6 +226,9 @@ public Builder pythonSpec(
       return pythonSpec(pythonSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecPythonSpec> pythonSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pythonSpec(Optional<ReasoningEngineSpecSourceCodeSpecPythonSpec> pythonSpec);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSource.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSource.java
index 8d6fef1..66cce8c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSource.java
@@ -84,6 +84,9 @@ public Builder adkConfig(
       return adkConfig(adkConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecAgentConfigSourceAdkConfig> adkConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder adkConfig(
         Optional<ReasoningEngineSpecSourceCodeSpecAgentConfigSourceAdkConfig> adkConfig);
@@ -121,6 +124,9 @@ public Builder inlineSource(
       return inlineSource(inlineSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecInlineSource> inlineSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder inlineSource(
         Optional<ReasoningEngineSpecSourceCodeSpecInlineSource> inlineSource);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSourceAdkConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSourceAdkConfig.java
index db525ce..2b05c7e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSourceAdkConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecAgentConfigSourceAdkConfig.java
@@ -64,7 +64,18 @@ private static Builder create() {
      * <p>jsonConfig: Required. The value of the ADK config in JSON format.
      */
     @JsonProperty("jsonConfig")
-    public abstract Builder jsonConfig(Map<String, Object> jsonConfig);
+    @CanIgnoreReturnValue
+    public Builder jsonConfig(Map<String, Object> jsonConfig) {
+      if (jsonConfig().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(jsonConfig().get());
+        map.putAll(jsonConfig);
+        return jsonConfig(java.util.Optional.of(map));
+      }
+      return jsonConfig(java.util.Optional.of(jsonConfig));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> jsonConfig();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder jsonConfig(Optional<Map<String, Object>> jsonConfig);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig.java
index ca3db8d..71f96ee 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig.java
@@ -84,6 +84,9 @@ private static Builder create() {
     @JsonProperty("gitRepositoryLink")
     public abstract Builder gitRepositoryLink(String gitRepositoryLink);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> gitRepositoryLink();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder gitRepositoryLink(Optional<String> gitRepositoryLink);
 
@@ -102,6 +105,9 @@ public Builder clearGitRepositoryLink() {
     @JsonProperty("dir")
     public abstract Builder dir(String dir);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> dir();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder dir(Optional<String> dir);
 
@@ -121,6 +127,9 @@ public Builder clearDir() {
     @JsonProperty("revision")
     public abstract Builder revision(String revision);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> revision();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revision(Optional<String> revision);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectSource.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectSource.java
index f9eacd2..9e01d71 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecDeveloperConnectSource.java
@@ -83,6 +83,9 @@ public Builder config(
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(
         Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig> config);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecImageSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecImageSpec.java
index 90baa79..6cf697b 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecImageSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecImageSpec.java
@@ -66,7 +66,18 @@ private static Builder create() {
      * flags.
      */
     @JsonProperty("buildArgs")
-    public abstract Builder buildArgs(Map<String, String> buildArgs);
+    @CanIgnoreReturnValue
+    public Builder buildArgs(Map<String, String> buildArgs) {
+      if (buildArgs().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(buildArgs().get());
+        map.putAll(buildArgs);
+        return buildArgs(java.util.Optional.of(map));
+      }
+      return buildArgs(java.util.Optional.of(buildArgs));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> buildArgs();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder buildArgs(Optional<Map<String, String>> buildArgs);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecInlineSource.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecInlineSource.java
index a6d938e..5386872 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecInlineSource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecInlineSource.java
@@ -67,6 +67,9 @@ private static Builder create() {
     @JsonProperty("sourceArchive")
     public abstract Builder sourceArchive(byte[] sourceArchive);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<byte[]> sourceArchive();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourceArchive(Optional<byte[]> sourceArchive);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecPythonSpec.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecPythonSpec.java
index d6fa247..5408ce0 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecPythonSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineSpecSourceCodeSpecPythonSpec.java
@@ -93,6 +93,9 @@ private static Builder create() {
     @JsonProperty("entrypointModule")
     public abstract Builder entrypointModule(String entrypointModule);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointModule();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointModule(Optional<String> entrypointModule);
 
@@ -113,6 +116,9 @@ public Builder clearEntrypointModule() {
     @JsonProperty("entrypointObject")
     public abstract Builder entrypointObject(String entrypointObject);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointObject();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointObject(Optional<String> entrypointObject);
 
@@ -132,6 +138,9 @@ public Builder clearEntrypointObject() {
     @JsonProperty("requirementsFile")
     public abstract Builder requirementsFile(String requirementsFile);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> requirementsFile();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requirementsFile(Optional<String> requirementsFile);
 
@@ -151,6 +160,9 @@ public Builder clearRequirementsFile() {
     @JsonProperty("version")
     public abstract Builder version(String version);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> version();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder version(Optional<String> version);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfig.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfig.java
index f7498d6..725abb4 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfig.java
@@ -88,6 +88,10 @@ public Builder trafficSplitAlwaysLatest(
       return trafficSplitAlwaysLatest(trafficSplitAlwaysLatestBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineTrafficConfigTrafficSplitAlwaysLatest>
+        trafficSplitAlwaysLatest();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder trafficSplitAlwaysLatest(
         Optional<ReasoningEngineTrafficConfigTrafficSplitAlwaysLatest> trafficSplitAlwaysLatest);
@@ -121,6 +125,9 @@ public Builder trafficSplitManual(
       return trafficSplitManual(trafficSplitManualBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineTrafficConfigTrafficSplitManual> trafficSplitManual();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder trafficSplitManual(
         Optional<ReasoningEngineTrafficConfigTrafficSplitManual> trafficSplitManual);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManual.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManual.java
index 73fd0c7..2d98632 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManual.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManual.java
@@ -71,8 +71,16 @@ private static Builder create() {
      * equal to 100.
      */
     @JsonProperty("targets")
-    public abstract Builder targets(
-        List<ReasoningEngineTrafficConfigTrafficSplitManualTarget> targets);
+    @CanIgnoreReturnValue
+    public Builder targets(List<ReasoningEngineTrafficConfigTrafficSplitManualTarget> targets) {
+      if (targets().isPresent()) {
+        List<ReasoningEngineTrafficConfigTrafficSplitManualTarget> list =
+            new java.util.ArrayList<>(targets().get());
+        list.addAll(targets);
+        return targets(java.util.Optional.of(list));
+      }
+      return targets(java.util.Optional.of(targets));
+    }
 
     /**
      * Setter for targets.
@@ -100,6 +108,9 @@ public Builder targets(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<ReasoningEngineTrafficConfigTrafficSplitManualTarget>> targets();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder targets(
         Optional<List<ReasoningEngineTrafficConfigTrafficSplitManualTarget>> targets);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManualTarget.java b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManualTarget.java
index 4ffdb08..9665be6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManualTarget.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/ReasoningEngineTrafficConfigTrafficSplitManualTarget.java
@@ -74,6 +74,9 @@ private static Builder create() {
     @JsonProperty("percent")
     public abstract Builder percent(Integer percent);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> percent();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder percent(Optional<Integer> percent);
 
@@ -93,6 +96,9 @@ public Builder clearPercent() {
     @JsonProperty("runtimeRevisionName")
     public abstract Builder runtimeRevisionName(String runtimeRevisionName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> runtimeRevisionName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder runtimeRevisionName(Optional<String> runtimeRevisionName);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesConfig.java
index 1288aa4..8263b11 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesConfig.java
@@ -98,6 +98,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -119,6 +122,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("filter")
     public abstract Builder filter(String filter);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> filter();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filter(Optional<String> filter);
 
@@ -143,7 +149,15 @@ public Builder clearFilter() {
      * (metadata.label = "travel" AND metadata.author = "agent 321"))`.
      */
     @JsonProperty("filterGroups")
-    public abstract Builder filterGroups(List<MemoryConjunctionFilter> filterGroups);
+    @CanIgnoreReturnValue
+    public Builder filterGroups(List<MemoryConjunctionFilter> filterGroups) {
+      if (filterGroups().isPresent()) {
+        List<MemoryConjunctionFilter> list = new java.util.ArrayList<>(filterGroups().get());
+        list.addAll(filterGroups);
+        return filterGroups(java.util.Optional.of(list));
+      }
+      return filterGroups(java.util.Optional.of(filterGroups));
+    }
 
     /**
      * Setter for filterGroups.
@@ -184,6 +198,9 @@ public Builder filterGroups(MemoryConjunctionFilter.Builder... filterGroupsBuild
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryConjunctionFilter>> filterGroups();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder filterGroups(Optional<List<MemoryConjunctionFilter>> filterGroups);
 
@@ -203,7 +220,15 @@ public Builder clearFilterGroups() {
      * of the specified `MemoryType` values.
      */
     @JsonProperty("memoryTypes")
-    public abstract Builder memoryTypes(List<MemoryType> memoryTypes);
+    @CanIgnoreReturnValue
+    public Builder memoryTypes(List<MemoryType> memoryTypes) {
+      if (memoryTypes().isPresent()) {
+        List<MemoryType> list = new java.util.ArrayList<>(memoryTypes().get());
+        list.addAll(memoryTypes);
+        return memoryTypes(java.util.Optional.of(list));
+      }
+      return memoryTypes(java.util.Optional.of(memoryTypes));
+    }
 
     /**
      * Setter for memoryTypes.
@@ -218,6 +243,9 @@ public Builder memoryTypes(MemoryType... memoryTypes) {
       return memoryTypes(Arrays.asList(memoryTypes));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryType>> memoryTypes();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryTypes(Optional<List<MemoryType>> memoryTypes);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestParameters.java
index b94432b..2a97c0c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestParameters.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -106,7 +109,18 @@ public Builder clearName() {
      * same keys and values). Order does not matter, but it is case-sensitive.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -138,6 +152,9 @@ public Builder similaritySearchParams(
       return similaritySearchParams(similaritySearchParamsBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<RetrieveMemoriesRequestSimilaritySearchParams> similaritySearchParams();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder similaritySearchParams(
         Optional<RetrieveMemoriesRequestSimilaritySearchParams> similaritySearchParams);
@@ -169,6 +186,9 @@ public Builder simpleRetrievalParams(
       return simpleRetrievalParams(simpleRetrievalParamsBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<RetrieveMemoriesRequestSimpleRetrievalParams> simpleRetrievalParams();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder simpleRetrievalParams(
         Optional<RetrieveMemoriesRequestSimpleRetrievalParams> simpleRetrievalParams);
@@ -198,6 +218,9 @@ public Builder config(RetrieveMemoriesConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<RetrieveMemoriesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<RetrieveMemoriesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimilaritySearchParams.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimilaritySearchParams.java
index a41bb5b..9c24ff7 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimilaritySearchParams.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimilaritySearchParams.java
@@ -77,6 +77,9 @@ private static Builder create() {
     @JsonProperty("searchQuery")
     public abstract Builder searchQuery(String searchQuery);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> searchQuery();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder searchQuery(Optional<String> searchQuery);
 
@@ -97,6 +100,9 @@ public Builder clearSearchQuery() {
     @JsonProperty("topK")
     public abstract Builder topK(Integer topK);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> topK();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder topK(Optional<Integer> topK);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimpleRetrievalParams.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimpleRetrievalParams.java
index 0623998..ac5bac7 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimpleRetrievalParams.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesRequestSimpleRetrievalParams.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("pageSize")
     public abstract Builder pageSize(Integer pageSize);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> pageSize();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageSize(Optional<Integer> pageSize);
 
@@ -95,6 +98,9 @@ public Builder clearPageSize() {
     @JsonProperty("pageToken")
     public abstract Builder pageToken(String pageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> pageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pageToken(Optional<String> pageToken);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponse.java
index 06e2f30..32545a0 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponse.java
@@ -74,6 +74,9 @@ private static Builder create() {
     @JsonProperty("nextPageToken")
     public abstract Builder nextPageToken(String nextPageToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> nextPageToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder nextPageToken(Optional<String> nextPageToken);
 
@@ -90,8 +93,17 @@ public Builder clearNextPageToken() {
      * <p>retrievedMemories: The retrieved memories.
      */
     @JsonProperty("retrievedMemories")
-    public abstract Builder retrievedMemories(
-        List<RetrieveMemoriesResponseRetrievedMemory> retrievedMemories);
+    @CanIgnoreReturnValue
+    public Builder retrievedMemories(
+        List<RetrieveMemoriesResponseRetrievedMemory> retrievedMemories) {
+      if (retrievedMemories().isPresent()) {
+        List<RetrieveMemoriesResponseRetrievedMemory> list =
+            new java.util.ArrayList<>(retrievedMemories().get());
+        list.addAll(retrievedMemories);
+        return retrievedMemories(java.util.Optional.of(list));
+      }
+      return retrievedMemories(java.util.Optional.of(retrievedMemories));
+    }
 
     /**
      * Setter for retrievedMemories.
@@ -117,6 +129,9 @@ public Builder retrievedMemories(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<RetrieveMemoriesResponseRetrievedMemory>> retrievedMemories();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder retrievedMemories(
         Optional<List<RetrieveMemoriesResponseRetrievedMemory>> retrievedMemories);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponseRetrievedMemory.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponseRetrievedMemory.java
index 943b5e3..db86331 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponseRetrievedMemory.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoriesResponseRetrievedMemory.java
@@ -71,6 +71,9 @@ private static Builder create() {
     @JsonProperty("distance")
     public abstract Builder distance(Double distance);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Double> distance();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder distance(Optional<Double> distance);
 
@@ -99,6 +102,9 @@ public Builder memory(Memory.Builder memoryBuilder) {
       return memory(memoryBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Memory> memory();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memory(Optional<Memory> memory);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesConfig.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesConfig.java
index e036681..f298d47 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesConfig.java
@@ -63,6 +63,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesRequestParameters.java
index 7d66d85..04b8d9c 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveMemoryProfilesRequestParameters.java
@@ -79,6 +79,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -98,7 +101,18 @@ public Builder clearName() {
      * same keys and values). Order does not matter, but it is case-sensitive.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -128,6 +142,9 @@ public Builder config(RetrieveMemoryProfilesConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<RetrieveMemoryProfilesConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<RetrieveMemoryProfilesConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RetrieveProfilesResponse.java b/src/main/java/com/google/cloud/agentplatform/types/RetrieveProfilesResponse.java
index f672f05..90f5f6e 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RetrieveProfilesResponse.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RetrieveProfilesResponse.java
@@ -66,7 +66,18 @@ private static Builder create() {
      * `StructuredMemoryCustomizationConfig`.
      */
     @JsonProperty("profiles")
-    public abstract Builder profiles(Map<String, MemoryProfile> profiles);
+    @CanIgnoreReturnValue
+    public Builder profiles(Map<String, MemoryProfile> profiles) {
+      if (profiles().isPresent()) {
+        Map<String, MemoryProfile> map = new java.util.HashMap<>(profiles().get());
+        map.putAll(profiles);
+        return profiles(java.util.Optional.of(map));
+      }
+      return profiles(java.util.Optional.of(profiles));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, MemoryProfile>> profiles();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder profiles(Optional<Map<String, MemoryProfile>> profiles);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryConfig.java
index 4b3c5ac..f852832 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryConfig.java
@@ -65,6 +65,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -83,6 +86,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryOperation.java b/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryOperation.java
index bc41990..bdc7a46 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryOperation.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -106,7 +109,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -127,6 +141,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -143,7 +160,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryRequestParameters.java
index 0c8ca27..b0eebf8 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RollbackMemoryRequestParameters.java
@@ -72,6 +72,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -90,6 +93,9 @@ public Builder clearName() {
     @JsonProperty("targetRevisionId")
     public abstract Builder targetRevisionId(String targetRevisionId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> targetRevisionId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder targetRevisionId(Optional<String> targetRevisionId);
 
@@ -118,6 +124,9 @@ public Builder config(RollbackMemoryConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<RollbackMemoryConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<RollbackMemoryConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobAgentEngineConfig.java
index 0d6e483..b4ac021 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobAgentEngineConfig.java
@@ -76,6 +76,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -94,6 +97,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("query")
     public abstract Builder query(String query);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> query();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder query(Optional<String> query);
 
@@ -115,6 +121,9 @@ public Builder clearQuery() {
     @JsonProperty("outputGcsUri")
     public abstract Builder outputGcsUri(String outputGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> outputGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder outputGcsUri(Optional<String> outputGcsUri);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobResult.java b/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobResult.java
index 17fc6db..2c434ec 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobResult.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/RunQueryJobResult.java
@@ -73,6 +73,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -91,6 +94,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("jobName")
     public abstract Builder jobName(String jobName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> jobName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder jobName(Optional<String> jobName);
 
@@ -109,6 +115,9 @@ public Builder clearJobName() {
     @JsonProperty("inputGcsUri")
     public abstract Builder inputGcsUri(String inputGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> inputGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder inputGcsUri(Optional<String> inputGcsUri);
 
@@ -127,6 +136,9 @@ public Builder clearInputGcsUri() {
     @JsonProperty("outputGcsUri")
     public abstract Builder outputGcsUri(String outputGcsUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> outputGcsUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder outputGcsUri(Optional<String> outputGcsUri);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironment.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironment.java
index 0cb640d..ad09899 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironment.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironment.java
@@ -124,6 +124,9 @@ private static Builder create() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -152,6 +155,9 @@ public Builder connectionInfo(SandboxEnvironmentConnectionInfo.Builder connectio
       return connectionInfo(connectionInfoBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentConnectionInfo> connectionInfo();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder connectionInfo(Optional<SandboxEnvironmentConnectionInfo> connectionInfo);
 
@@ -170,6 +176,9 @@ public Builder clearConnectionInfo() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -188,6 +197,9 @@ public Builder clearCreateTime() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -206,6 +218,9 @@ public Builder clearDisplayName() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -234,6 +249,9 @@ public Builder spec(SandboxEnvironmentSpec.Builder specBuilder) {
       return spec(specBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentSpec> spec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder spec(Optional<SandboxEnvironmentSpec> spec);
 
@@ -252,6 +270,9 @@ public Builder clearSpec() {
     @JsonProperty("state")
     public abstract Builder state(SandboxState state);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxState> state();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder state(Optional<SandboxState> state);
 
@@ -291,6 +312,9 @@ public Builder state(String state) {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -310,6 +334,9 @@ public Builder clearTtl() {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
@@ -330,6 +357,9 @@ public Builder clearUpdateTime() {
     public abstract Builder latestSandboxEnvironmentSnapshot(
         String latestSandboxEnvironmentSnapshot);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> latestSandboxEnvironmentSnapshot();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder latestSandboxEnvironmentSnapshot(
         Optional<String> latestSandboxEnvironmentSnapshot);
@@ -351,6 +381,9 @@ public Builder clearLatestSandboxEnvironmentSnapshot() {
     @JsonProperty("owner")
     public abstract Builder owner(String owner);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> owner();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder owner(Optional<String> owner);
 
@@ -371,6 +404,9 @@ public Builder clearOwner() {
     @JsonProperty("sandboxEnvironmentSnapshot")
     public abstract Builder sandboxEnvironmentSnapshot(String sandboxEnvironmentSnapshot);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sandboxEnvironmentSnapshot();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironmentSnapshot(Optional<String> sandboxEnvironmentSnapshot);
 
@@ -390,6 +426,9 @@ public Builder clearSandboxEnvironmentSnapshot() {
     @JsonProperty("sandboxEnvironmentTemplate")
     public abstract Builder sandboxEnvironmentTemplate(String sandboxEnvironmentTemplate);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sandboxEnvironmentTemplate();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxEnvironmentTemplate(Optional<String> sandboxEnvironmentTemplate);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentConnectionInfo.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentConnectionInfo.java
index 8d704f3..976d1cc 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentConnectionInfo.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentConnectionInfo.java
@@ -75,6 +75,9 @@ private static Builder create() {
     @JsonProperty("loadBalancerHostname")
     public abstract Builder loadBalancerHostname(String loadBalancerHostname);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> loadBalancerHostname();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder loadBalancerHostname(Optional<String> loadBalancerHostname);
 
@@ -93,6 +96,9 @@ public Builder clearLoadBalancerHostname() {
     @JsonProperty("loadBalancerIp")
     public abstract Builder loadBalancerIp(String loadBalancerIp);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> loadBalancerIp();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder loadBalancerIp(Optional<String> loadBalancerIp);
 
@@ -111,6 +117,9 @@ public Builder clearLoadBalancerIp() {
     @JsonProperty("sandboxInternalIp")
     public abstract Builder sandboxInternalIp(String sandboxInternalIp);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sandboxInternalIp();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sandboxInternalIp(Optional<String> sandboxInternalIp);
 
@@ -129,6 +138,9 @@ public Builder clearSandboxInternalIp() {
     @JsonProperty("routingToken")
     public abstract Builder routingToken(String routingToken);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> routingToken();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder routingToken(Optional<String> routingToken);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSnapshot.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSnapshot.java
index d4dfb0a..69f9e4a 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSnapshot.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSnapshot.java
@@ -119,6 +119,9 @@ private static Builder create() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -137,6 +140,9 @@ public Builder clearDisplayName() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -155,6 +161,9 @@ public Builder clearExpireTime() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -174,6 +183,9 @@ public Builder clearCreateTime() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -194,6 +206,9 @@ public Builder clearName() {
     @JsonProperty("owner")
     public abstract Builder owner(String owner);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> owner();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder owner(Optional<String> owner);
 
@@ -214,6 +229,9 @@ public Builder clearOwner() {
     @JsonProperty("parentSnapshot")
     public abstract Builder parentSnapshot(String parentSnapshot);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> parentSnapshot();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder parentSnapshot(Optional<String> parentSnapshot);
 
@@ -234,6 +252,9 @@ public Builder clearParentSnapshot() {
     @JsonProperty("postSnapshotAction")
     public abstract Builder postSnapshotAction(PostSnapshotAction postSnapshotAction);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PostSnapshotAction> postSnapshotAction();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder postSnapshotAction(Optional<PostSnapshotAction> postSnapshotAction);
 
@@ -276,6 +297,9 @@ public Builder postSnapshotAction(String postSnapshotAction) {
     @JsonProperty("sizeBytes")
     public abstract Builder sizeBytes(Long sizeBytes);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Long> sizeBytes();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sizeBytes(Optional<Long> sizeBytes);
 
@@ -295,6 +319,9 @@ public Builder clearSizeBytes() {
     @JsonProperty("sourceSandboxEnvironment")
     public abstract Builder sourceSandboxEnvironment(String sourceSandboxEnvironment);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sourceSandboxEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourceSandboxEnvironment(Optional<String> sourceSandboxEnvironment);
 
@@ -314,6 +341,9 @@ public Builder clearSourceSandboxEnvironment() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -333,6 +363,9 @@ public Builder clearTtl() {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpec.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpec.java
index 82f7c5d..ebcb189 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpec.java
@@ -81,6 +81,9 @@ public Builder codeExecutionEnvironment(
       return codeExecutionEnvironment(codeExecutionEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentSpecCodeExecutionEnvironment> codeExecutionEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder codeExecutionEnvironment(
         Optional<SandboxEnvironmentSpecCodeExecutionEnvironment> codeExecutionEnvironment);
@@ -112,6 +115,9 @@ public Builder computerUseEnvironment(
       return computerUseEnvironment(computerUseEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentSpecComputerUseEnvironment> computerUseEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder computerUseEnvironment(
         Optional<SandboxEnvironmentSpecComputerUseEnvironment> computerUseEnvironment);
@@ -143,6 +149,9 @@ public Builder shellEnvironment(
       return shellEnvironment(shellEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentSpecShellEnvironment> shellEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder shellEnvironment(
         Optional<SandboxEnvironmentSpecShellEnvironment> shellEnvironment);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpecCodeExecutionEnvironment.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpecCodeExecutionEnvironment.java
index 6dfb413..64416b7 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpecCodeExecutionEnvironment.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentSpecCodeExecutionEnvironment.java
@@ -67,6 +67,9 @@ private static Builder create() {
     @JsonProperty("codeLanguage")
     public abstract Builder codeLanguage(Language codeLanguage);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Language> codeLanguage();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder codeLanguage(Optional<Language> codeLanguage);
 
@@ -105,6 +108,9 @@ public Builder codeLanguage(String codeLanguage) {
     @JsonProperty("machineConfig")
     public abstract Builder machineConfig(MachineConfig machineConfig);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MachineConfig> machineConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder machineConfig(Optional<MachineConfig> machineConfig);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplate.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplate.java
index bb66a0d..738a4b7 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplate.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplate.java
@@ -94,6 +94,9 @@ private static Builder create() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -125,6 +128,10 @@ public Builder customContainerEnvironment(
       return customContainerEnvironment(customContainerEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateCustomContainerEnvironment>
+        customContainerEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customContainerEnvironment(
         Optional<SandboxEnvironmentTemplateCustomContainerEnvironment> customContainerEnvironment);
@@ -157,6 +164,10 @@ public Builder defaultContainerEnvironment(
       return defaultContainerEnvironment(defaultContainerEnvironmentBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateDefaultContainerEnvironment>
+        defaultContainerEnvironment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder defaultContainerEnvironment(
         Optional<SandboxEnvironmentTemplateDefaultContainerEnvironment>
@@ -177,6 +188,9 @@ public Builder clearDefaultContainerEnvironment() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -207,6 +221,9 @@ public Builder egressControlConfig(
       return egressControlConfig(egressControlConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateEgressControlConfig> egressControlConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder egressControlConfig(
         Optional<SandboxEnvironmentTemplateEgressControlConfig> egressControlConfig);
@@ -227,6 +244,9 @@ public Builder clearEgressControlConfig() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -245,6 +265,9 @@ public Builder clearName() {
     @JsonProperty("state")
     public abstract Builder state(State state);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<State> state();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder state(Optional<State> state);
 
@@ -284,6 +307,9 @@ public Builder state(String state) {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerEnvironment.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerEnvironment.java
index 43d1fee..8be9923 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerEnvironment.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerEnvironment.java
@@ -88,6 +88,9 @@ public Builder customContainerSpec(
       return customContainerSpec(customContainerSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateCustomContainerSpec> customContainerSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customContainerSpec(
         Optional<SandboxEnvironmentTemplateCustomContainerSpec> customContainerSpec);
@@ -105,7 +108,15 @@ public Builder clearCustomContainerSpec() {
      * <p>ports: Ports to expose from the container.
      */
     @JsonProperty("ports")
-    public abstract Builder ports(List<SandboxEnvironmentTemplateNetworkPort> ports);
+    @CanIgnoreReturnValue
+    public Builder ports(List<SandboxEnvironmentTemplateNetworkPort> ports) {
+      if (ports().isPresent()) {
+        List<SandboxEnvironmentTemplateNetworkPort> list = new java.util.ArrayList<>(ports().get());
+        list.addAll(ports);
+        return ports(java.util.Optional.of(list));
+      }
+      return ports(java.util.Optional.of(ports));
+    }
 
     /**
      * Setter for ports.
@@ -130,6 +141,9 @@ public Builder ports(SandboxEnvironmentTemplateNetworkPort.Builder... portsBuild
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SandboxEnvironmentTemplateNetworkPort>> ports();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ports(Optional<List<SandboxEnvironmentTemplateNetworkPort>> ports);
 
@@ -159,6 +173,9 @@ public Builder resources(
       return resources(resourcesBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateResourceRequirements> resources();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder resources(Optional<SandboxEnvironmentTemplateResourceRequirements> resources);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerSpec.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerSpec.java
index 40e3431..b2dd765 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerSpec.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateCustomContainerSpec.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("imageUri")
     public abstract Builder imageUri(String imageUri);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> imageUri();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder imageUri(Optional<String> imageUri);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateDefaultContainerEnvironment.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateDefaultContainerEnvironment.java
index f443f3f..beae3ef 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateDefaultContainerEnvironment.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateDefaultContainerEnvironment.java
@@ -69,6 +69,9 @@ private static Builder create() {
     public abstract Builder defaultContainerCategory(
         DefaultContainerCategory defaultContainerCategory);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<DefaultContainerCategory> defaultContainerCategory();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder defaultContainerCategory(
         Optional<DefaultContainerCategory> defaultContainerCategory);
@@ -119,6 +122,9 @@ public Builder resources(
       return resources(resourcesBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplateResourceRequirements> resources();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder resources(Optional<SandboxEnvironmentTemplateResourceRequirements> resources);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfig.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfig.java
index 2edcf5c..ac81135 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfig.java
@@ -86,6 +86,9 @@ private static Builder create() {
     @JsonProperty("internetAccess")
     public abstract Builder internetAccess(boolean internetAccess);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> internetAccess();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder internetAccess(Optional<Boolean> internetAccess);
 
@@ -104,6 +107,9 @@ public Builder clearInternetAccess() {
     @JsonProperty("customerVpcNetwork")
     public abstract Builder customerVpcNetwork(String customerVpcNetwork);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> customerVpcNetwork();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder customerVpcNetwork(Optional<String> customerVpcNetwork);
 
@@ -121,8 +127,17 @@ public Builder clearCustomerVpcNetwork() {
      * resolve customer-internal domains via the customer VPC.
      */
     @JsonProperty("dnsPeeringConfigs")
-    public abstract Builder dnsPeeringConfigs(
-        List<SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig> dnsPeeringConfigs);
+    @CanIgnoreReturnValue
+    public Builder dnsPeeringConfigs(
+        List<SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig> dnsPeeringConfigs) {
+      if (dnsPeeringConfigs().isPresent()) {
+        List<SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig> list =
+            new java.util.ArrayList<>(dnsPeeringConfigs().get());
+        list.addAll(dnsPeeringConfigs);
+        return dnsPeeringConfigs(java.util.Optional.of(list));
+      }
+      return dnsPeeringConfigs(java.util.Optional.of(dnsPeeringConfigs));
+    }
 
     /**
      * Setter for dnsPeeringConfigs.
@@ -152,6 +167,10 @@ public Builder dnsPeeringConfigs(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig>>
+        dnsPeeringConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder dnsPeeringConfigs(
         Optional<List<SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig>>
@@ -173,6 +192,9 @@ public Builder clearDnsPeeringConfigs() {
     @JsonProperty("networkAttachment")
     public abstract Builder networkAttachment(String networkAttachment);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> networkAttachment();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder networkAttachment(Optional<String> networkAttachment);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig.java
index 0788053..947aa36 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateEgressControlConfigDnsPeeringConfig.java
@@ -86,6 +86,9 @@ private static Builder create() {
     @JsonProperty("domain")
     public abstract Builder domain(String domain);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> domain();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder domain(Optional<String> domain);
 
@@ -105,6 +108,9 @@ public Builder clearDomain() {
     @JsonProperty("targetNetwork")
     public abstract Builder targetNetwork(String targetNetwork);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> targetNetwork();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder targetNetwork(Optional<String> targetNetwork);
 
@@ -124,6 +130,9 @@ public Builder clearTargetNetwork() {
     @JsonProperty("targetProject")
     public abstract Builder targetProject(String targetProject);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> targetProject();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder targetProject(Optional<String> targetProject);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateNetworkPort.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateNetworkPort.java
index 401029c..c6a2d3f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateNetworkPort.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateNetworkPort.java
@@ -68,6 +68,9 @@ private static Builder create() {
     @JsonProperty("port")
     public abstract Builder port(Integer port);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> port();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder port(Optional<Integer> port);
 
@@ -86,6 +89,9 @@ public Builder clearPort() {
     @JsonProperty("protocol")
     public abstract Builder protocol(Protocol protocol);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Protocol> protocol();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder protocol(Optional<Protocol> protocol);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateOperation.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateOperation.java
index 2475015..1a281d6 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateOperation.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateOperation.java
@@ -94,6 +94,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -113,7 +116,18 @@ public Builder clearName() {
      * type, if any.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, Object> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, Object> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, Object>> metadata);
@@ -134,6 +148,9 @@ public Builder clearMetadata() {
     @JsonProperty("done")
     public abstract Builder done(boolean done);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> done();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder done(Optional<Boolean> done);
 
@@ -150,7 +167,18 @@ public Builder clearDone() {
      * <p>error: The error result of the operation in case of failure or cancellation.
      */
     @JsonProperty("error")
-    public abstract Builder error(Map<String, Object> error);
+    @CanIgnoreReturnValue
+    public Builder error(Map<String, Object> error) {
+      if (error().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(error().get());
+        map.putAll(error);
+        return error(java.util.Optional.of(map));
+      }
+      return error(java.util.Optional.of(error));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> error();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder error(Optional<Map<String, Object>> error);
@@ -180,6 +208,9 @@ public Builder response(SandboxEnvironmentTemplate.Builder responseBuilder) {
       return response(responseBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SandboxEnvironmentTemplate> response();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder response(Optional<SandboxEnvironmentTemplate> response);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateResourceRequirements.java b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateResourceRequirements.java
index 57828f5..b14a9ae 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateResourceRequirements.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SandboxEnvironmentTemplateResourceRequirements.java
@@ -76,7 +76,18 @@ private static Builder create() {
      * names (e.g., "cpu", "memory"). Values are quantities (e.g., "500m", "1Gi").
      */
     @JsonProperty("limits")
-    public abstract Builder limits(Map<String, String> limits);
+    @CanIgnoreReturnValue
+    public Builder limits(Map<String, String> limits) {
+      if (limits().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(limits().get());
+        map.putAll(limits);
+        return limits(java.util.Optional.of(map));
+      }
+      return limits(java.util.Optional.of(limits));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> limits();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder limits(Optional<Map<String, String>> limits);
@@ -95,7 +106,18 @@ public Builder clearLimits() {
      * (e.g., "cpu", "memory"). Values are quantities (e.g., "250m", "512Mi").
      */
     @JsonProperty("requests")
-    public abstract Builder requests(Map<String, String> requests);
+    @CanIgnoreReturnValue
+    public Builder requests(Map<String, String> requests) {
+      if (requests().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(requests().get());
+        map.putAll(requests);
+        return requests(java.util.Optional.of(map));
+      }
+      return requests(java.util.Optional.of(requests));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> requests();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requests(Optional<Map<String, String>> requests);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderData.java b/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderData.java
index 36fa917..6bf44ad 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderData.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderData.java
@@ -80,6 +80,9 @@ private static Builder create() {
     @JsonProperty("codeRepositoryState")
     public abstract Builder codeRepositoryState(String codeRepositoryState);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> codeRepositoryState();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder codeRepositoryState(Optional<String> codeRepositoryState);
 
@@ -98,6 +101,9 @@ public Builder clearCodeRepositoryState() {
     @JsonProperty("framework")
     public abstract Builder framework(Framework framework);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Framework> framework();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder framework(Optional<Framework> framework);
 
@@ -134,8 +140,17 @@ public Builder framework(String framework) {
      * <p>linkedResources: Linked resources attached to the application by the user.
      */
     @JsonProperty("linkedResources")
-    public abstract Builder linkedResources(
-        List<SchemaPromptSpecAppBuilderDataLinkedResource> linkedResources);
+    @CanIgnoreReturnValue
+    public Builder linkedResources(
+        List<SchemaPromptSpecAppBuilderDataLinkedResource> linkedResources) {
+      if (linkedResources().isPresent()) {
+        List<SchemaPromptSpecAppBuilderDataLinkedResource> list =
+            new java.util.ArrayList<>(linkedResources().get());
+        list.addAll(linkedResources);
+        return linkedResources(java.util.Optional.of(list));
+      }
+      return linkedResources(java.util.Optional.of(linkedResources));
+    }
 
     /**
      * Setter for linkedResources.
@@ -162,6 +177,9 @@ public Builder linkedResources(
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<SchemaPromptSpecAppBuilderDataLinkedResource>> linkedResources();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder linkedResources(
         Optional<List<SchemaPromptSpecAppBuilderDataLinkedResource>> linkedResources);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderDataLinkedResource.java b/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderDataLinkedResource.java
index 8661cc9..02ec62d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderDataLinkedResource.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecAppBuilderDataLinkedResource.java
@@ -79,6 +79,9 @@ private static Builder create() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -99,6 +102,9 @@ public Builder clearDisplayName() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -119,6 +125,9 @@ public Builder clearName() {
     @JsonProperty("type")
     public abstract Builder type(String type);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> type();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder type(Optional<String> type);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecInteractionData.java b/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecInteractionData.java
index 443fd18..d9a3bfd 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecInteractionData.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SchemaPromptSpecInteractionData.java
@@ -68,7 +68,15 @@ private static Builder create() {
      * interaction ID.
      */
     @JsonProperty("interactionIds")
-    public abstract Builder interactionIds(List<String> interactionIds);
+    @CanIgnoreReturnValue
+    public Builder interactionIds(List<String> interactionIds) {
+      if (interactionIds().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(interactionIds().get());
+        list.addAll(interactionIds);
+        return interactionIds(java.util.Optional.of(list));
+      }
+      return interactionIds(java.util.Optional.of(interactionIds));
+    }
 
     /**
      * Setter for interactionIds.
@@ -82,6 +90,9 @@ public Builder interactionIds(String... interactionIds) {
       return interactionIds(Arrays.asList(interactionIds));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> interactionIds();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder interactionIds(Optional<List<String>> interactionIds);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SecretEnvVar.java b/src/main/java/com/google/cloud/agentplatform/types/SecretEnvVar.java
index a057a94..b8bf5f3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SecretEnvVar.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SecretEnvVar.java
@@ -67,6 +67,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder secretRef(SecretRef.Builder secretRefBuilder) {
       return secretRef(secretRefBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<SecretRef> secretRef();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder secretRef(Optional<SecretRef> secretRef);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SecretRef.java b/src/main/java/com/google/cloud/agentplatform/types/SecretRef.java
index 91a00e4..f2630c3 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SecretRef.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SecretRef.java
@@ -70,6 +70,9 @@ private static Builder create() {
     @JsonProperty("secret")
     public abstract Builder secret(String secret);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> secret();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder secret(Optional<String> secret);
 
@@ -89,6 +92,9 @@ public Builder clearSecret() {
     @JsonProperty("version")
     public abstract Builder version(String version);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> version();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder version(Optional<String> version);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/Session.java b/src/main/java/com/google/cloud/agentplatform/types/Session.java
index 6745b4e..e154c44 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/Session.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/Session.java
@@ -107,6 +107,9 @@ private static Builder create() {
     @JsonProperty("createTime")
     public abstract Builder createTime(Instant createTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> createTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder createTime(Optional<Instant> createTime);
 
@@ -125,6 +128,9 @@ public Builder clearCreateTime() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -145,6 +151,9 @@ public Builder clearDisplayName() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -164,7 +173,18 @@ public Builder clearExpireTime() {
      * See https://goo.gl/xmQnxf for more information and examples of labels.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -185,6 +205,9 @@ public Builder clearLabels() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -201,7 +224,18 @@ public Builder clearName() {
      * <p>sessionState: Optional. Session specific memory which stores key conversation points.
      */
     @JsonProperty("sessionState")
-    public abstract Builder sessionState(Map<String, Object> sessionState);
+    @CanIgnoreReturnValue
+    public Builder sessionState(Map<String, Object> sessionState) {
+      if (sessionState().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(sessionState().get());
+        map.putAll(sessionState);
+        return sessionState(java.util.Optional.of(map));
+      }
+      return sessionState(java.util.Optional.of(sessionState));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> sessionState();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessionState(Optional<Map<String, Object>> sessionState);
@@ -221,6 +255,9 @@ public Builder clearSessionState() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -239,6 +276,9 @@ public Builder clearTtl() {
     @JsonProperty("updateTime")
     public abstract Builder updateTime(Instant updateTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> updateTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateTime(Optional<Instant> updateTime);
 
@@ -257,6 +297,9 @@ public Builder clearUpdateTime() {
     @JsonProperty("userId")
     public abstract Builder userId(String userId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> userId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder userId(Optional<String> userId);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/SessionEvent.java b/src/main/java/com/google/cloud/agentplatform/types/SessionEvent.java
index ab48f58..e689edb 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/SessionEvent.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/SessionEvent.java
@@ -102,6 +102,9 @@ private static Builder create() {
     @JsonProperty("content")
     public abstract Builder content(Content content);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Content> content();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder content(Optional<Content> content);
 
@@ -130,6 +133,9 @@ public Builder actions(EventActions.Builder actionsBuilder) {
       return actions(actionsBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EventActions> actions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder actions(Optional<EventActions> actions);
 
@@ -148,6 +154,9 @@ public Builder clearActions() {
     @JsonProperty("author")
     public abstract Builder author(String author);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> author();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder author(Optional<String> author);
 
@@ -166,6 +175,9 @@ public Builder clearAuthor() {
     @JsonProperty("errorCode")
     public abstract Builder errorCode(String errorCode);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> errorCode();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder errorCode(Optional<String> errorCode);
 
@@ -184,6 +196,9 @@ public Builder clearErrorCode() {
     @JsonProperty("errorMessage")
     public abstract Builder errorMessage(String errorMessage);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> errorMessage();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder errorMessage(Optional<String> errorMessage);
 
@@ -212,6 +227,9 @@ public Builder eventMetadata(EventMetadata.Builder eventMetadataBuilder) {
       return eventMetadata(eventMetadataBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EventMetadata> eventMetadata();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder eventMetadata(Optional<EventMetadata> eventMetadata);
 
@@ -231,6 +249,9 @@ public Builder clearEventMetadata() {
     @JsonProperty("invocationId")
     public abstract Builder invocationId(String invocationId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> invocationId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder invocationId(Optional<String> invocationId);
 
@@ -250,6 +271,9 @@ public Builder clearInvocationId() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -268,6 +292,9 @@ public Builder clearName() {
     @JsonProperty("timestamp")
     public abstract Builder timestamp(Instant timestamp);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> timestamp();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder timestamp(Optional<Instant> timestamp);
 
@@ -284,7 +311,18 @@ public Builder clearTimestamp() {
      * <p>rawEvent: Optional. Weakly typed raw event data in proto struct format.
      */
     @JsonProperty("rawEvent")
-    public abstract Builder rawEvent(Map<String, Object> rawEvent);
+    @CanIgnoreReturnValue
+    public Builder rawEvent(Map<String, Object> rawEvent) {
+      if (rawEvent().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(rawEvent().get());
+        map.putAll(rawEvent);
+        return rawEvent(java.util.Optional.of(map));
+      }
+      return rawEvent(java.util.Optional.of(rawEvent));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> rawEvent();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder rawEvent(Optional<Map<String, Object>> rawEvent);
diff --git a/src/main/java/com/google/cloud/agentplatform/types/StructuredMemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/StructuredMemoryConfig.java
index b3856d7..78223a8 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/StructuredMemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/StructuredMemoryConfig.java
@@ -71,7 +71,15 @@ private static Builder create() {
      * <p>schemaConfigs: Optional. Represents configuration of the structured memories' schemas.
      */
     @JsonProperty("schemaConfigs")
-    public abstract Builder schemaConfigs(List<StructuredMemorySchemaConfig> schemaConfigs);
+    @CanIgnoreReturnValue
+    public Builder schemaConfigs(List<StructuredMemorySchemaConfig> schemaConfigs) {
+      if (schemaConfigs().isPresent()) {
+        List<StructuredMemorySchemaConfig> list = new java.util.ArrayList<>(schemaConfigs().get());
+        list.addAll(schemaConfigs);
+        return schemaConfigs(java.util.Optional.of(list));
+      }
+      return schemaConfigs(java.util.Optional.of(schemaConfigs));
+    }
 
     /**
      * Setter for schemaConfigs.
@@ -96,6 +104,9 @@ public Builder schemaConfigs(StructuredMemorySchemaConfig.Builder... schemaConfi
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<StructuredMemorySchemaConfig>> schemaConfigs();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder schemaConfigs(Optional<List<StructuredMemorySchemaConfig>> schemaConfigs);
 
@@ -115,7 +126,15 @@ public Builder clearSchemaConfigs() {
      * have a more specific config. Only one default config is allowed per Memory Bank.
      */
     @JsonProperty("scopeKeys")
-    public abstract Builder scopeKeys(List<String> scopeKeys);
+    @CanIgnoreReturnValue
+    public Builder scopeKeys(List<String> scopeKeys) {
+      if (scopeKeys().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(scopeKeys().get());
+        list.addAll(scopeKeys);
+        return scopeKeys(java.util.Optional.of(list));
+      }
+      return scopeKeys(java.util.Optional.of(scopeKeys));
+    }
 
     /**
      * Setter for scopeKeys.
@@ -130,6 +149,9 @@ public Builder scopeKeys(String... scopeKeys) {
       return scopeKeys(Arrays.asList(scopeKeys));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> scopeKeys();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scopeKeys(Optional<List<String>> scopeKeys);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/StructuredMemorySchemaConfig.java b/src/main/java/com/google/cloud/agentplatform/types/StructuredMemorySchemaConfig.java
index f079af8..d42088d 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/StructuredMemorySchemaConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/StructuredMemorySchemaConfig.java
@@ -77,6 +77,9 @@ private static Builder create() {
     @JsonProperty("memorySchema")
     public abstract Builder memorySchema(Schema memorySchema);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Schema> memorySchema();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memorySchema(Optional<Schema> memorySchema);
 
@@ -96,6 +99,9 @@ public Builder clearMemorySchema() {
     @JsonProperty("id")
     public abstract Builder id(String id);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> id();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder id(Optional<String> id);
 
@@ -115,6 +121,9 @@ public Builder clearId() {
     @JsonProperty("memoryType")
     public abstract Builder memoryType(MemoryType memoryType);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<MemoryType> memoryType();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryType(Optional<MemoryType> memoryType);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineConfig.java b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineConfig.java
index 9ab8ed4..e5676f0 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineConfig.java
@@ -218,6 +218,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -238,6 +241,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -256,6 +262,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -284,6 +293,9 @@ public Builder spec(ReasoningEngineSpec.Builder specBuilder) {
       return spec(specBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpec> spec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder spec(Optional<ReasoningEngineSpec> spec);
 
@@ -312,6 +324,9 @@ public Builder contextSpec(ReasoningEngineContextSpec.Builder contextSpecBuilder
       return contextSpec(contextSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineContextSpec> contextSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder contextSpec(Optional<ReasoningEngineContextSpec> contextSpec);
 
@@ -342,6 +357,9 @@ public Builder pscInterfaceConfig(PscInterfaceConfig.Builder pscInterfaceConfigB
       return pscInterfaceConfig(pscInterfaceConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PscInterfaceConfig> pscInterfaceConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pscInterfaceConfig(Optional<PscInterfaceConfig> pscInterfaceConfig);
 
@@ -361,6 +379,9 @@ public Builder clearPscInterfaceConfig() {
     @JsonProperty("minInstances")
     public abstract Builder minInstances(Integer minInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> minInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder minInstances(Optional<Integer> minInstances);
 
@@ -380,6 +401,9 @@ public Builder clearMinInstances() {
     @JsonProperty("maxInstances")
     public abstract Builder maxInstances(Integer maxInstances);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> maxInstances();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder maxInstances(Optional<Integer> maxInstances);
 
@@ -398,7 +422,18 @@ public Builder clearMaxInstances() {
      * 'memory': '1Gi', '2Gi', ..., '32Gi'.
      */
     @JsonProperty("resourceLimits")
-    public abstract Builder resourceLimits(Map<String, String> resourceLimits);
+    @CanIgnoreReturnValue
+    public Builder resourceLimits(Map<String, String> resourceLimits) {
+      if (resourceLimits().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(resourceLimits().get());
+        map.putAll(resourceLimits);
+        return resourceLimits(java.util.Optional.of(map));
+      }
+      return resourceLimits(java.util.Optional.of(resourceLimits));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> resourceLimits();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder resourceLimits(Optional<Map<String, String>> resourceLimits);
@@ -419,6 +454,9 @@ public Builder clearResourceLimits() {
     @JsonProperty("containerConcurrency")
     public abstract Builder containerConcurrency(Integer containerConcurrency);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Integer> containerConcurrency();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder containerConcurrency(Optional<Integer> containerConcurrency);
 
@@ -447,6 +485,9 @@ public Builder encryptionSpec(EncryptionSpec.Builder encryptionSpecBuilder) {
       return encryptionSpec(encryptionSpecBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<EncryptionSpec> encryptionSpec();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder encryptionSpec(Optional<EncryptionSpec> encryptionSpec);
 
@@ -463,7 +504,18 @@ public Builder clearEncryptionSpec() {
      * <p>labels: The labels to be used for the Agent Engine.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -484,7 +536,15 @@ public Builder clearLabels() {
      * method defined on the agent class.
      */
     @JsonProperty("classMethods")
-    public abstract Builder classMethods(List<Map<String, Object>> classMethods);
+    @CanIgnoreReturnValue
+    public Builder classMethods(List<Map<String, Object>> classMethods) {
+      if (classMethods().isPresent()) {
+        List<Map<String, Object>> list = new java.util.ArrayList<>(classMethods().get());
+        list.addAll(classMethods);
+        return classMethods(java.util.Optional.of(list));
+      }
+      return classMethods(java.util.Optional.of(classMethods));
+    }
 
     /**
      * Setter for classMethods.
@@ -499,6 +559,9 @@ public Builder classMethods(Map<String, Object>... classMethods) {
       return classMethods(Arrays.asList(classMethods));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<Map<String, Object>>> classMethods();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder classMethods(Optional<List<Map<String, Object>>> classMethods);
 
@@ -520,7 +583,15 @@ public Builder clearClassMethods() {
      * entrypoint_object (required) - requirements_file (optional) - class_methods (required)
      */
     @JsonProperty("sourcePackages")
-    public abstract Builder sourcePackages(List<String> sourcePackages);
+    @CanIgnoreReturnValue
+    public Builder sourcePackages(List<String> sourcePackages) {
+      if (sourcePackages().isPresent()) {
+        List<String> list = new java.util.ArrayList<>(sourcePackages().get());
+        list.addAll(sourcePackages);
+        return sourcePackages(java.util.Optional.of(list));
+      }
+      return sourcePackages(java.util.Optional.of(sourcePackages));
+    }
 
     /**
      * Setter for sourcePackages.
@@ -537,6 +608,9 @@ public Builder sourcePackages(String... sourcePackages) {
       return sourcePackages(Arrays.asList(sourcePackages));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<String>> sourcePackages();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sourcePackages(Optional<List<String>> sourcePackages);
 
@@ -572,6 +646,10 @@ public Builder developerConnectSource(
       return developerConnectSource(developerConnectSourceBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig>
+        developerConnectSource();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder developerConnectSource(
         Optional<ReasoningEngineSpecSourceCodeSpecDeveloperConnectConfig> developerConnectSource);
@@ -592,6 +670,9 @@ public Builder clearDeveloperConnectSource() {
     @JsonProperty("entrypointModule")
     public abstract Builder entrypointModule(String entrypointModule);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointModule();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointModule(Optional<String> entrypointModule);
 
@@ -611,6 +692,9 @@ public Builder clearEntrypointModule() {
     @JsonProperty("entrypointObject")
     public abstract Builder entrypointObject(String entrypointObject);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> entrypointObject();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder entrypointObject(Optional<String> entrypointObject);
 
@@ -631,6 +715,9 @@ public Builder clearEntrypointObject() {
     @JsonProperty("requirementsFile")
     public abstract Builder requirementsFile(String requirementsFile);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> requirementsFile();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder requirementsFile(Optional<String> requirementsFile);
 
@@ -653,6 +740,9 @@ public Builder clearRequirementsFile() {
     @JsonProperty("agentFramework")
     public abstract Builder agentFramework(AgentFramework agentFramework);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<AgentFramework> agentFramework();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentFramework(Optional<AgentFramework> agentFramework);
 
@@ -701,6 +791,9 @@ public Builder agentFramework(String agentFramework) {
     @JsonProperty("pythonVersion")
     public abstract Builder pythonVersion(PythonVersion pythonVersion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<PythonVersion> pythonVersion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder pythonVersion(Optional<PythonVersion> pythonVersion);
 
@@ -744,7 +837,18 @@ public Builder pythonVersion(String pythonVersion) {
      * path must be added to `extra_packages`.
      */
     @JsonProperty("buildOptions")
-    public abstract Builder buildOptions(Map<String, List<String>> buildOptions);
+    @CanIgnoreReturnValue
+    public Builder buildOptions(Map<String, List<String>> buildOptions) {
+      if (buildOptions().isPresent()) {
+        Map<String, List<String>> map = new java.util.HashMap<>(buildOptions().get());
+        map.putAll(buildOptions);
+        return buildOptions(java.util.Optional.of(map));
+      }
+      return buildOptions(java.util.Optional.of(buildOptions));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, List<String>>> buildOptions();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder buildOptions(Optional<Map<String, List<String>>> buildOptions);
@@ -776,6 +880,9 @@ public Builder agentGatewayConfig(
       return agentGatewayConfig(agentGatewayConfigBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder agentGatewayConfig(
         Optional<ReasoningEngineSpecDeploymentSpecAgentGatewayConfig> agentGatewayConfig);
@@ -809,6 +916,9 @@ public Builder keepAliveProbe(KeepAliveProbe.Builder keepAliveProbeBuilder) {
       return keepAliveProbe(keepAliveProbeBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<KeepAliveProbe> keepAliveProbe();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder keepAliveProbe(Optional<KeepAliveProbe> keepAliveProbe);
 
@@ -828,6 +938,9 @@ public Builder clearKeepAliveProbe() {
     @JsonProperty("updateMask")
     public abstract Builder updateMask(String updateMask);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> updateMask();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateMask(Optional<String> updateMask);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineRequestParameters.java
index 1962cba..fa8f6c1 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(UpdateAgentEngineConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<UpdateAgentEngineConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<UpdateAgentEngineConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionConfig.java b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionConfig.java
index 13cf2a3..e293fca 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionConfig.java
@@ -122,6 +122,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -140,6 +143,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -156,7 +162,18 @@ public Builder clearDisplayName() {
      * <p>sessionState: Session state which stores key conversation points.
      */
     @JsonProperty("sessionState")
-    public abstract Builder sessionState(Map<String, Object> sessionState);
+    @CanIgnoreReturnValue
+    public Builder sessionState(Map<String, Object> sessionState) {
+      if (sessionState().isPresent()) {
+        Map<String, Object> map = new java.util.HashMap<>(sessionState().get());
+        map.putAll(sessionState);
+        return sessionState(java.util.Optional.of(map));
+      }
+      return sessionState(java.util.Optional.of(sessionState));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, Object>> sessionState();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessionState(Optional<Map<String, Object>> sessionState);
@@ -176,6 +193,9 @@ public Builder clearSessionState() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -196,6 +216,9 @@ public Builder clearWaitForCompletion() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -215,6 +238,9 @@ public Builder clearTtl() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -234,7 +260,18 @@ public Builder clearExpireTime() {
      * allowed. See https://goo.gl/xmQnxf for more information and examples of labels.
      */
     @JsonProperty("labels")
-    public abstract Builder labels(Map<String, String> labels);
+    @CanIgnoreReturnValue
+    public Builder labels(Map<String, String> labels) {
+      if (labels().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(labels().get());
+        map.putAll(labels);
+        return labels(java.util.Optional.of(map));
+      }
+      return labels(java.util.Optional.of(labels));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> labels();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder labels(Optional<Map<String, String>> labels);
@@ -257,6 +294,9 @@ public Builder clearLabels() {
     @JsonProperty("sessionId")
     public abstract Builder sessionId(String sessionId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> sessionId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder sessionId(Optional<String> sessionId);
 
@@ -276,6 +316,9 @@ public Builder clearSessionId() {
     @JsonProperty("updateMask")
     public abstract Builder updateMask(String updateMask);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> updateMask();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateMask(Optional<String> updateMask);
 
@@ -294,6 +337,9 @@ public Builder clearUpdateMask() {
     @JsonProperty("userId")
     public abstract Builder userId(String userId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> userId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder userId(Optional<String> userId);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionRequestParameters.java
index 3ba8203..b0a04ba 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/UpdateAgentEngineSessionRequestParameters.java
@@ -69,6 +69,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -97,6 +100,9 @@ public Builder config(UpdateAgentEngineSessionConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<UpdateAgentEngineSessionConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<UpdateAgentEngineSessionConfig> config);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryConfig.java b/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryConfig.java
index 22d150b..de9c30f 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryConfig.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryConfig.java
@@ -137,6 +137,9 @@ private static Builder create() {
     @JsonProperty("httpOptions")
     public abstract Builder httpOptions(HttpOptions httpOptions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<HttpOptions> httpOptions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder httpOptions(Optional<HttpOptions> httpOptions);
 
@@ -155,6 +158,9 @@ public Builder clearHttpOptions() {
     @JsonProperty("displayName")
     public abstract Builder displayName(String displayName);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> displayName();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder displayName(Optional<String> displayName);
 
@@ -173,6 +179,9 @@ public Builder clearDisplayName() {
     @JsonProperty("description")
     public abstract Builder description(String description);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> description();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder description(Optional<String> description);
 
@@ -191,6 +200,9 @@ public Builder clearDescription() {
     @JsonProperty("waitForCompletion")
     public abstract Builder waitForCompletion(boolean waitForCompletion);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> waitForCompletion();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder waitForCompletion(Optional<Boolean> waitForCompletion);
 
@@ -211,6 +223,9 @@ public Builder clearWaitForCompletion() {
     @JsonProperty("ttl")
     public abstract Builder ttl(Duration ttl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> ttl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder ttl(Optional<Duration> ttl);
 
@@ -230,6 +245,9 @@ public Builder clearTtl() {
     @JsonProperty("expireTime")
     public abstract Builder expireTime(Instant expireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> expireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder expireTime(Optional<Instant> expireTime);
 
@@ -249,6 +267,9 @@ public Builder clearExpireTime() {
     @JsonProperty("revisionExpireTime")
     public abstract Builder revisionExpireTime(Instant revisionExpireTime);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Instant> revisionExpireTime();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionExpireTime(Optional<Instant> revisionExpireTime);
 
@@ -268,6 +289,9 @@ public Builder clearRevisionExpireTime() {
     @JsonProperty("revisionTtl")
     public abstract Builder revisionTtl(Duration revisionTtl);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Duration> revisionTtl();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder revisionTtl(Optional<Duration> revisionTtl);
 
@@ -287,6 +311,9 @@ public Builder clearRevisionTtl() {
     @JsonProperty("disableMemoryRevisions")
     public abstract Builder disableMemoryRevisions(boolean disableMemoryRevisions);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Boolean> disableMemoryRevisions();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder disableMemoryRevisions(Optional<Boolean> disableMemoryRevisions);
 
@@ -303,7 +330,15 @@ public Builder clearDisableMemoryRevisions() {
      * <p>topics: Optional. The topics of the memory.
      */
     @JsonProperty("topics")
-    public abstract Builder topics(List<MemoryTopicId> topics);
+    @CanIgnoreReturnValue
+    public Builder topics(List<MemoryTopicId> topics) {
+      if (topics().isPresent()) {
+        List<MemoryTopicId> list = new java.util.ArrayList<>(topics().get());
+        list.addAll(topics);
+        return topics(java.util.Optional.of(list));
+      }
+      return topics(java.util.Optional.of(topics));
+    }
 
     /**
      * Setter for topics.
@@ -328,6 +363,9 @@ public Builder topics(MemoryTopicId.Builder... topicsBuilders) {
               .collect(toImmutableList()));
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<List<MemoryTopicId>> topics();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder topics(Optional<List<MemoryTopicId>> topics);
 
@@ -345,7 +383,18 @@ public Builder clearTopics() {
      * when creating, updating, or generating the Memory. It was not generated by Memory Bank.
      */
     @JsonProperty("metadata")
-    public abstract Builder metadata(Map<String, MemoryMetadataValue> metadata);
+    @CanIgnoreReturnValue
+    public Builder metadata(Map<String, MemoryMetadataValue> metadata) {
+      if (metadata().isPresent()) {
+        Map<String, MemoryMetadataValue> map = new java.util.HashMap<>(metadata().get());
+        map.putAll(metadata);
+        return metadata(java.util.Optional.of(map));
+      }
+      return metadata(java.util.Optional.of(metadata));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, MemoryMetadataValue>> metadata();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder metadata(Optional<Map<String, MemoryMetadataValue>> metadata);
@@ -368,6 +417,9 @@ public Builder clearMetadata() {
     @JsonProperty("memoryId")
     public abstract Builder memoryId(String memoryId);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> memoryId();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder memoryId(Optional<String> memoryId);
 
@@ -387,6 +439,9 @@ public Builder clearMemoryId() {
     @JsonProperty("updateMask")
     public abstract Builder updateMask(String updateMask);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> updateMask();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder updateMask(Optional<String> updateMask);
 
diff --git a/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryRequestParameters.java b/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryRequestParameters.java
index 806e1b6..7f4a043 100644
--- a/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryRequestParameters.java
+++ b/src/main/java/com/google/cloud/agentplatform/types/UpdateMemoryRequestParameters.java
@@ -87,6 +87,9 @@ private static Builder create() {
     @JsonProperty("name")
     public abstract Builder name(String name);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> name();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder name(Optional<String> name);
 
@@ -107,6 +110,9 @@ public Builder clearName() {
     @JsonProperty("fact")
     public abstract Builder fact(String fact);
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<String> fact();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder fact(Optional<String> fact);
 
@@ -127,7 +133,18 @@ public Builder clearFact() {
      * character '*'.
      */
     @JsonProperty("scope")
-    public abstract Builder scope(Map<String, String> scope);
+    @CanIgnoreReturnValue
+    public Builder scope(Map<String, String> scope) {
+      if (scope().isPresent()) {
+        Map<String, String> map = new java.util.HashMap<>(scope().get());
+        map.putAll(scope);
+        return scope(java.util.Optional.of(map));
+      }
+      return scope(java.util.Optional.of(scope));
+    }
+
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<Map<String, String>> scope();
 
     @ExcludeFromGeneratedCoverageReport
     abstract Builder scope(Optional<Map<String, String>> scope);
@@ -157,6 +174,9 @@ public Builder config(UpdateMemoryConfig.Builder configBuilder) {
       return config(configBuilder.build());
     }
 
+    @ExcludeFromGeneratedCoverageReport
+    abstract Optional<UpdateMemoryConfig> config();
+
     @ExcludeFromGeneratedCoverageReport
     abstract Builder config(Optional<UpdateMemoryConfig> config);