code: def testMergeOutputArtifactsUnrecognizedKeyInUpdatedDictRaisesError(
      self,
  ):
      original_artifacts = {"key1": [_tfx_artifact(uri="/x/1")]}
      updated_artifacts = {"key2": [_tfx_artifact(uri="/x/2")]}
      with self.assertRaisesRegex(
          RuntimeError, "contains more keys than output skeleton"
      ):
          merge_utils.merge_updated_output_artifacts(
              original_artifacts,
              _build_output_artifact_dict(updated_artifacts),
          )
  
imports: from typing import Dict, Mapping, Optional, Sequence
  from absl.testing import parameterized
  import tensorflow
  from tfx import types
  from tfx.orchestration.portable import merge_utils
  from tfx.orchestration.portable import outputs_utils
  from tfx.types import standard_artifacts
  from tfx.utils import test_case_utils
  from tfx.utils import typing_utils
  from ml_metadata.proto import metadata_store_pb2
label_desc: Use image node_id 9 for calling the MergeUtilsTest obj's underlying member method code with example usage: obj.testMergeOutputArtifactsUnrecognizedKeyInUpdatedDictRaisesError() without return types