code: def testBuildRequests_DefaultArgument(self):
      builder_cls = self._PrepareTFServingRequestBuilder()
      builder = builder_cls.return_value
  
      request_builder.build_requests(
          model_name="foo",
          model=self._model,
          examples=self._examples,
          request_spec=_make_request_spec(
              {
                  "tensorflow_serving": {
                      # 'signature_names': ['serving_default']
                  },
                  # 'split_name': 'eval',
                  # 'num_examples': 1
              }
          ),
      )
  
      builder.ReadExamplesArtifact.assert_called_with(
          self._examples,
          split_name=None,  # Without split_name (will choose any split).
          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 5 for calling the TestBuildRequests obj's underlying member method code with example usage: obj.testBuildRequests_DefaultArgument() without return types