code: def testReadExamplesArtifact_FailIfSplitNamesEmpty(self):
      builder = _MockBuilder()
      examples = standard_artifacts.Examples()
      examples.uri = self._examples.uri
  
      with self.assertRaises(ValueError):
          builder.ReadExamplesArtifact(examples, num_examples=1)
  
imports: import os
  from typing import Any, Dict
  from unittest import mock
  import tensorflow
  from tfx.components.infra_validator import request_builder
  from tfx.proto import infra_validator_pb2
  from tfx.types import artifact_utils
  from tfx.types import standard_artifacts
  from tfx.utils import path_utils
  from google.protobuf import json_format
  from tensorflow.core.protobuf import meta_graph_pb2
  from tensorflow.core.protobuf import saved_model_pb2
  from tensorflow_serving.apis import classification_pb2
  from tensorflow_serving.apis import predict_pb2
  from tensorflow_serving.apis import regression_pb2
label_desc: Use image node_id 3 for calling the BaseRequestBuilderTest obj's underlying member method code with example usage: obj.testReadExamplesArtifact_FailIfSplitNamesEmpty() without return types