code: def test_should_set_labels(
      self, mock_client, mock_get_creds_and_project_id
  ):
      mock_get_creds_and_project_id.return_value = (
          "creds",
          "project_id",
      )
  
      stackdriver_task_handler = self._setup_handler()
      stackdriver_task_handler.set_context(self.ti)
  
      self.logger.info("test-message")
      stackdriver_task_handler.flush()
  
      labels = {
          "task_id": self.TASK_ID,
          "dag_id": self.DAG_ID,
          "execution_date": "2016-01-01T00:00:00+00:00",
          "try_number": "1",
      }
      resource = Resource(type="global", labels={})
      self.transport_mock.return_value.send.assert_called_once_with(
          mock.ANY, "test-message", labels=labels, resource=resource
      )
  
imports: from __future__ import annotations
  import logging
  from unittest import mock
  from urllib.parse import parse_qs, urlsplit
  import pytest
  from google.cloud.logging import Resource
  from google.cloud.logging_v2.types import ListLogEntriesRequest, ListLogEntriesResponse, LogEntry
  from airflow.providers.google.cloud.log.stackdriver_task_handler import StackdriverTaskHandler
  from airflow.utils import timezone
  from airflow.utils.state import TaskInstanceState
  from tests.test_utils.db import clear_db_dags, clear_db_runs
label_desc: Use image node_id 3 for calling the TestStackdriverLoggingHandlerTask obj's underlying member method code with example usage: obj.test_should_set_labels(mock_client, mock_get_creds_and_project_id) without return types