Specifically, give it `get_ref()`, `get_mut()`, `into_inner()`, and `get_pin_mut()` methods. Problem: `JsonLinesStream` wraps [`tokio::io::Lines`][lines], which does not have a `get_pin_mut()` method to delegate to and whose `into_inner()` method loses data. [lines]: https://docs.rs/tokio/latest/tokio/io/struct.Lines.html
Specifically, give it
get_ref(),get_mut(),into_inner(), andget_pin_mut()methods.Problem:
JsonLinesStreamwrapstokio::io::Lines, which does not have aget_pin_mut()method to delegate to and whoseinto_inner()method loses data.