Allowing change of max turns in agent as tool

[frodulec]

• Allowed passing max_turns through Agent.as_tool(...) to nested agent runs.
• Updated Runner.run to accept max_turns: int | None; when None, default to DEFAULT_MAX_TURNS.
• Added targeted tests to cover both behaviors

Run tests, formatting and linting.

[seratch]

Thanks for sending this PR. Like I mentioned at openai/openai-agents-js#460, we may want to unlock other options too and we'd like to align with TypeScript SDK for its design. So, perhaps our ideal solution could look a bit different.

[Fatima367]

If you want to set max_turns or tweak run config, create a function tool whose body calls Runner.run(...) for the sub-agent (that you want to use as tool) and returns a string.

[frodulec]

Thanks for sending this PR. Like I mentioned at openai/openai-agents-js#460, we may want to unlock other options too and we'd like to align with TypeScript SDK for its design. So, perhaps our ideal solution could look a bit different.

I see, than you for the reply, looking forward for this feature then