langchain/chat_models/promptlayer_openai.py/PromptLayerChatOpenAI/_identifying_params
class PromptLayerChatOpenAI:    def _identifying_params(self) -> Mapping[str, Any]:
        return {
            **super()._identifying_params,
            "pl_tags": self.pl_tags,
            "return_pl_id": self.return_pl_id,
        }