sharon8811

Check if key in UstrMap without creating new ustr

1

We need a way to check if key is in the UstrMap without actually creating ustr, think of a user input and i want to check if the search term...

[Bedrock] ValidationException: "Thinking may not be enabled when tool_choice forces tool use" with interleaved thinking on Sonnet 4.5

4

### Initial Checks - [x] I confirm that I'm using the latest version of Pydantic AI - [x] I confirm that I searched for my issue in https://github.com/pydantic/pydantic-ai/issues before opening...