[lxcxjxhx]

Link to Issue or Description of Change

1. Link to an existing issue (if applicable):

• No issue; single-line documentation correction, described below.

2. Or, if no issue exists, describe the change:

Problem:

_convert_interaction_step_to_parts (src/google/adk/models/interactions_utils.py:758) documents a parameter it does not take:

def _convert_interaction_step_to_parts(step: Step) -> list[types.Part]:
  """Convert an interaction output content to a list of types.Part.

  Args:
    output: The interaction output object to convert.

The parameter is step: Step. The Args: entry is left over from a signature that took the interaction output; the body now branches on ModelOutputStep and its content items, so a reader looking for output finds nothing, and the summary's "interaction output content" points at the wrong intermediate type as well.

Solution:

Rename the entry to step and describe what the function actually receives:

  Args:
    step: The interaction step to convert.

One file, +1/−1, no code touched. I left the summary sentence alone: "Convert an interaction output content to a list of types.Part" describes the result accurately enough, and rewording it would make this a two-purpose diff.

Verification:

• ruff==0.15.17 check on the file: All checks passed!
• pyink==25.12 --check on the file: 1 file would be left unchanged (this repository formats with pyink; ruff format would reformat the file both before and after this change, so it is not the formatting gate here).
• No behaviour change, so no test: the diff is one docstring line.

On the CLA: I have read CONTRIBUTING.md; the Google CLA check on this PR will stay pending until the account holder signs it at cla.developers.google.com. Flagging it rather than leaving you to discover it — the code change itself is complete.

Additional context

Found by parsing the tree with ast and comparing every Args: entry against the real signature (positional-only, keyword-only, *args and **kwargs included). In src/google/adk, this is the only remaining entry that names something the signature does not accept — the two others under tools/openapi_tool/ are already the subject of #8026, so I did not touch them.

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