I spotted something interesting in the Python API library code:

https://github.com/googleapis/python-genai/blob/473bf4b6b5a6...

  class ThinkingConfig(_common.BaseModel):
      """The thinking features configuration."""
   
      include_thoughts: Optional[bool] = Field(
          default=None,
          description="""Indicates whether to include thoughts in the response. If true, thoughts are returned only if the model supports thought and thoughts are available.
        """,
      )
      thinking_budget: Optional[int] = Field(
          default=None,
          description="""Indicates the thinking budget in tokens.
          """,
      )

That thinking_budget thing is documented, but what's the deal with include_thoughts? It sounds like it's an option to have the API return the thought summary... but I can't figure out how to get it to work, and I've not found documentation or example code that uses it.

Anyone managed to get Gemini to spit out thought summaries in its API using this option?