Questions about GroupChat implementation

[gagb]

Can someone explain what this function does? And why it's necessary for implementing subclasses of group chat.

autogen/python/packages/autogen-agentchat/src/autogen_agentchat/teams/_group_chat/_round_robin_group_chat.py

Lines 149 to 166 in c3e84dc

	def _create_group_chat_manager_factory(
	self,
	group_topic_type: str,
	output_topic_type: str,
	participant_topic_types: List[str],
	participant_descriptions: List[str],
	termination_condition: TerminationCondition | None,
	max_turns: int | None,
	) -> Callable[[], RoundRobinGroupChatManager]:
	def _factory() -> RoundRobinGroupChatManager:
	return RoundRobinGroupChatManager(
	group_topic_type,
	output_topic_type,
	participant_topic_types,
	participant_descriptions,
	termination_condition,
	max_turns,
	)

[raimondasl]

A function that creates a factory that creates RoundRobinGroupChatManager objects.
Not seeing where it's called https://github.com/search?q=repo%3Amicrosoft%2Fautogen%20_create_group_chat_manager_factory&type=code unless I'm missing something.

[gagb]

Thank you! What does the mean in plain English?

[raimondasl]

Edit: removed first sentence that was wrong.

Tried to find a good link for explaining the factory method, maybe this: https://refactoring.guru/design-patterns/factory-method/python/example

[raimondasl]

Basically a pattern to ensure that somethingChatManager matches the somethingChat

[raimondasl]

Ah, it's called here:

autogen/python/packages/autogen-agentchat/src/autogen_agentchat/teams/_group_chat/_base_group_chat.py

Line 125 in 44b9bff

factory=self._create_group_chat_manager_factory(

So this pattern ensures that the call gets correct somethingChatManager subclass for the somethingChat

[gagb]

Thank you I understand it. The main reason is to initiate the manager, without doing so in the constructor.