langchain/memory/kg.py/ConversationKGMemory/_get_current_entities
class ConversationKGMemory:    def _get_current_entities(self, inputs: Dict[str, Any]) -> List[str]:
        """Get the current entities in the conversation."""
        prompt_input_key = self._get_prompt_input_key(inputs)
        return self.get_current_entities(inputs[prompt_input_key])