def on_planning(
        self, prompt: PromptGenerator, messages: List[str]
    ) -> Optional[str]:
        """This method is called before the planning chat completeion is done.
        Args:
            prompt (PromptGenerator): The prompt generator.
            messages (List[str]): The list of messages.
        """
        pass
This method is called before the planning chat completeion is done.
        Args:
            prompt (PromptGenerator): The prompt generator.
            messages (List[str]): The list of messages.
        
src/autogpt_plugins/wikipedia_search/__init__.py