code: def dummy_mode_property():
      def mode_getter(self):
          return self._mode
  
      def mode_setter(self, value):
          self._mode = value
  
      return property(mode_getter, mode_setter)
  
file_path: airflow/tests/system/providers/google/cloud/gcs/example_gcs_sensor.py
imports: from __future__ import annotations
  import os
  from datetime import datetime
  from pathlib import Path
  from airflow.models.baseoperator import chain
  from airflow.models.dag import DAG
  from airflow.providers.google.cloud.operators.gcs import GCSCreateBucketOperator, GCSDeleteBucketOperator
  from airflow.providers.google.cloud.sensors.gcs import GCSObjectExistenceAsyncSensor, GCSObjectExistenceSensor, GCSObjectsWithPrefixExistenceSensor, GCSObjectUpdateSensor, GCSUploadSessionCompleteSensor
  from airflow.providers.google.cloud.transfers.local_to_gcs import LocalFilesystemToGCSOperator
  from airflow.utils.trigger_rule import TriggerRule
  from tests.system.utils import get_test_run
label_desc: Use image node_id 2 for calling a global function with example usage: dummy_mode_property() and returns: property, self