try:
            # Being run within AgentExecutor and there are tool outputs to submit.
            if self.as_agent and input.get("intermediate_steps"):
                tool_outputs = self._parse_intermediate_steps(
                    input["intermediate_steps"]
                )
                run = self.client.beta.threads.runs.submit_tool_outputs(**tool_outputs)
            # Starting a new thread and a new run.
            elif "thread_id" not in input:
                thread = {
                    "messages": [
                        {
                            "role": "user",
                            "content": input["content"],
                            "file_ids": input.get("file_ids", []),
                            "metadata": input.get("message_metadata"),
                        }
                    ],
                    "metadata": input.get("thread_metadata"),
                }
                run = self._create_thread_and_run(input, thread)
            # Starting a new run in an existing thread.
            elif "run_id" not in input:
                _ = self.client.beta.threads.messages.create(
                    input["thread_id"],
                    content=input["content"],
                    role="user",
                    file_ids=input.get("file_ids", []),
                    metadata=input.get("message_metadata"),
                )
                run = self._create_run(input)
            # Submitting tool outputs to an existing run, outside the AgentExecutor
            # framework.
            else:
                run = self.client.beta.threads.runs.submit_tool_outputs(**input)
            run = self._wait_for_run(run.id, run.thread_id)
        except BaseException as e:
            run_manager.on_chain_error(e)
            raise e
        try:
            response = self._get_response(run)
        except BaseException as e:
            run_manager.on_chain_error(e, metadata=run.dict())
            raise e
        else: