code: def test_execute_deferrable_mode(self, mock_hook):
      source_project_dataset_table = (
          f"{PROJECT_ID}:{TEST_DATASET}.{TEST_TABLE_ID}"
      )
      destination_cloud_storage_uris = [
          "gs://some-bucket/some-file.txt"
      ]
      compression = "NONE"
      export_format = "CSV"
      field_delimiter = ","
      print_header = True
      labels = {"k1": "v1"}
      job_id = "123456"
      hash_ = "hash"
      real_job_id = f"{job_id}_{hash_}"
  
      expected_configuration = {
          "extract": {
              "sourceTable": {
                  "projectId": "test-project-id",
                  "datasetId": "test-dataset",
                  "tableId": "test-table-id",
              },
              "compression": "NONE",
              "destinationUris": ["gs://some-bucket/some-file.txt"],
              "destinationFormat": "CSV",
              "fieldDelimiter": ",",
              "printHeader": True,
          },
          "labels": {"k1": "v1"},
      }
  
      mock_hook.return_value.split_tablename.return_value = (
          PROJECT_ID,
          TEST_DATASET,
          TEST_TABLE_ID,
      )
      mock_hook.return_value.generate_job_id.return_value = real_job_id
      mock_hook.return_value.insert_job.return_value = MagicMock(
          job_id="real_job_id", error_result=False
      )
      mock_hook.return_value.project_id = JOB_PROJECT_ID
  
      operator = BigQueryToGCSOperator(
          project_id=JOB_PROJECT_ID,
          task_id=TASK_ID,
          source_project_dataset_table=source_project_dataset_table,
          destination_cloud_storage_uris=destination_cloud_storage_uris,
          compression=compression,
          export_format=export_format,
          field_delimiter=field_delimiter,
          print_header=print_header,
          labels=labels,
          deferrable=True,
      )
      with pytest.raises(TaskDeferred) as exc:
          operator.execute(context=mock.MagicMock())
  
      assert isinstance(
          exc.value.trigger, BigQueryInsertJobTrigger
      ), "Trigger is not a BigQueryInsertJobTrigger"
  
      mock_hook.return_value.insert_job.assert_called_once_with(
          configuration=expected_configuration,
          job_id="123456_hash",
          project_id=JOB_PROJECT_ID,
          location=None,
          timeout=None,
          retry=DEFAULT_RETRY,
          nowait=True,
      )
  
file_path: airflow/tests/providers/google/cloud/transfers/test_bigquery_to_gcs.py
imports: from __future__ import annotations
  from unittest import mock
  from unittest.mock import MagicMock
  import pytest
  from google.cloud.bigquery.retry import DEFAULT_RETRY
  from google.cloud.bigquery.table import Table
  from openlineage.client.facet import ColumnLineageDatasetFacet, ColumnLineageDatasetFacetFieldsAdditional, ColumnLineageDatasetFacetFieldsAdditionalInputFields, DocumentationDatasetFacet, ExternalQueryRunFacet, SchemaDatasetFacet, SchemaField, SymlinksDatasetFacet, SymlinksDatasetFacetIdentifiers
  from openlineage.client.run import Dataset
  from airflow.exceptions import TaskDeferred
  from airflow.providers.google.cloud.transfers.bigquery_to_gcs import BigQueryToGCSOperator
  from airflow.providers.google.cloud.triggers.bigquery import BigQueryInsertJobTrigger
label_desc: Use image node_id 2 for calling the TestBigQueryToGCSOperator obj's underlying member method code with example usage: obj.test_execute_deferrable_mode(mock_hook) without return types