class_docstr: The trigger handles the async communication with the Google Cloud Composer.
code: def serialize(self) -> tuple[str, dict[str, Any]]:
      return (
          "airflow.providers.google.cloud.triggers.cloud_composer.CloudComposerExecutionTrigger",
          {
              "project_id": self.project_id,
              "region": self.region,
              "operation_name": self.operation_name,
              "gcp_conn_id": self.gcp_conn_id,
              "impersonation_chain": self.impersonation_chain,
              "pooling_period_seconds": self.pooling_period_seconds,
          },
      )
  
file_path: airflow/airflow/providers/google/cloud/triggers/cloud_composer.py
imports: from __future__ import annotations
  import asyncio
  from typing import Any, Sequence
  from airflow.exceptions import AirflowException
  from airflow.providers.google.cloud.hooks.cloud_composer import CloudComposerAsyncHook
  from airflow.triggers.base import BaseTrigger, TriggerEvent
label_desc: Use image node_id 2 for calling the CloudComposerExecutionTrigger obj's underlying member method code with example usage: obj.serialize() and returns: str,  dict