code: def testLatestPolicyModelOpTest_DoesNotRaiseSkipSignal(self):
      self.assertDictKeysEmpty(
          test_utils.run_resolver_op(
              ops.LatestPolicyModel,
              {},
              policy=_LATEST_EXPORTED,
              raise_skip_signal=False,
              context=resolver_op.Context(store=self.store),
          ),
          policy=_LATEST_EXPORTED,
      )
  
      # Keys present in input_dict but contains no artifacts.
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_EXPORTED, raise_skip_signal=False, model=[]
          ),
          policy=_LATEST_EXPORTED,
      )
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_EVALUATOR_BLESSED,
              raise_skip_signal=False,
              model_blessing=[],
          ),
          policy=_LATEST_EXPORTED,
      )
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_INFRA_VALIDATOR_BLESSED,
              raise_skip_signal=False,
              model_infra_blessing=[],
          ),
          policy=_LATEST_INFRA_VALIDATOR_BLESSED,
      )
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_BLESSED,
              raise_skip_signal=False,
              model_blessing=[],
              model_infra_blessing=[],
          ),
          policy=_LATEST_BLESSED,
      )
  
      # Models present in input_dict but none of them meet the specified policy.
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_EVALUATOR_BLESSED, raise_skip_signal=False
          ),
          policy=_LATEST_EVALUATOR_BLESSED,
      )
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_INFRA_VALIDATOR_BLESSED, raise_skip_signal=False
          ),
          policy=_LATEST_INFRA_VALIDATOR_BLESSED,
      )
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_BLESSED, raise_skip_signal=False
          ),
          policy=_LATEST_BLESSED,
      )
      self.assertDictKeysEmpty(
          self._latest_policy_model(
              _LATEST_PUSHED, raise_skip_signal=False
          ),
          policy=_LATEST_PUSHED,
      )
  
imports: from typing import Dict, List, Optional
  from absl.testing import parameterized
  import tensorflow
  from tfx import types
  from tfx.dsl.input_resolution import resolver_op
  from tfx.dsl.input_resolution.ops import latest_policy_model_op
  from tfx.dsl.input_resolution.ops import ops
  from tfx.dsl.input_resolution.ops import test_utils
  from tfx.orchestration.portable.input_resolution import exceptions
  from ml_metadata.proto import metadata_store_pb2
label_desc: Use image node_id 6 for calling the LatestPolicyModelOpTest obj's underlying member method code with example usage: obj.testLatestPolicyModelOpTest_DoesNotRaiseSkipSignal() without return types