code: def test_predict(self, service, mocker):
      create_predict_response = mocker.patch(
          "ts.service.create_predict_response"
      )
      service.predict(self.data)
      create_predict_response.assert_called()
  
file_path: serve/ts/tests/unit_tests/test_worker_service.py
imports: import logging
  import os
  import pytest
  from ts.context import Context
  from ts.service import Service
  from ts.service import emit_metrics
  from ts.metrics.metric_cache_yaml_impl import MetricsCacheYamlImpl
label_desc: Use image node_id 2 for calling the TestService obj's underlying member method code with example usage: obj.test_predict(service, mocker) without return types