code: def test_with_nil_request(self, service):
      with pytest.raises(ValueError, match=r"Received invalid inputs"):
          service.retrieve_data_for_inference(None)
  
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 3 for calling the TestService obj's underlying member method code with example usage: obj.test_with_nil_request(service) without return types