Python: Function invocation conversation-id propagation crashes when chat_options in kwargs is a dict

[moonbox3]

Description

Function invocation conversation-id propagation crashes when chat_options in kwargs is a dict.

_update_conversation_id does:

kwargs["chat_options"].conversation_id = conversation_id

which assumes an object with attribute access. If a dict is provided, this raises AttributeError.

Code Sample

from agent_framework._tools import _update_conversation_id

kwargs = {"chat_options": {}}
_update_conversation_id(kwargs, "conv_1", {})
# Actual: AttributeError: 'dict' object has no attribute 'conversation_id'
# Expected: kwargs['chat_options']['conversation_id'] updated or graceful handling

A full invocation-loop repro also fails in the same spot when tool-calling updates conversation id.

Error Messages / Stack Traces

AttributeError: 'dict' object has no attribute 'conversation_id' and no __dict__ for setting new attributes

Package Versions

agent-framework-core: source checkout at commit 02ba27493

Python Version

Python 3.13.5

Additional Context

This is in a hot path used by the function invocation loop for conversation-based providers.