Explnation:

The ChatMessageStoreProtocol currently defines methods for adding and listing messages, but lacks a method to clear/delete all messages. This is needed for common use cases like:

• User-initiated conversation resets
• Cleaning up test data
• Implementing privacy/data retention policies
• Starting fresh conversations in chat applications

Proposed Solution:

Add the following method to ChatMessageStoreProtocol:

async def clear_messages(self) -> None:
    """
    Clear all messages from the message store.
    
    This method should remove all persisted messages, allowing
    the conversation to start fresh.
    """
    ...

Workaround:

Currently using an extended protocol in my codebase:

@runtime_checkable
class ExtendedChatMessageStoreProtocol(ChatMessageStoreProtocol, Protocol):
    async def clear_messages(self) -> None: ...