code: def test_gcs_object_prefix_existence_sensor_finish_before_deferred(
      self, mock_defer, mock_hook
  ):
      task = GCSObjectsWithPrefixExistenceSensor(
          task_id="task-id",
          bucket=TEST_BUCKET,
          prefix=TEST_PREFIX,
          google_cloud_conn_id=TEST_GCP_CONN_ID,
          impersonation_chain=TEST_IMPERSONATION_CHAIN,
          deferrable=True,
      )
      mock_hook.return_value.list.return_value = True
      task.execute(mock.MagicMock())
      assert not mock_defer.called
  
imports: from __future__ import annotations
  from datetime import datetime, timedelta, timezone
  from unittest import mock
  import pendulum
  import pytest
  from google.cloud.storage.retry import DEFAULT_RETRY
  from airflow.exceptions import AirflowProviderDeprecationWarning, AirflowSensorTimeout, AirflowSkipException, TaskDeferred
  from airflow.models.dag import DAG, AirflowException
  from airflow.providers.google.cloud.sensors.gcs import GCSObjectExistenceAsyncSensor, GCSObjectExistenceSensor, GCSObjectsWithPrefixExistenceSensor, GCSObjectUpdateSensor, GCSUploadSessionCompleteSensor, ts_function
  from airflow.providers.google.cloud.triggers.gcs import GCSBlobTrigger, GCSCheckBlobUpdateTimeTrigger, GCSPrefixBlobTrigger, GCSUploadSessionTrigger
label_desc: Use image node_id 5 for calling the TestGoogleCloudStoragePrefixSensor obj's underlying member method code with example usage: obj.test_gcs_object_prefix_existence_sensor_finish_before_deferred(mock_defer, mock_hook) without return types