code: def test_read_stats_proto_with_invalid_uri(self):
      self.assertIsNone(
          tf_utils.read_stats_proto("/does/not/exist/", "train")
      )
      self.assertIsNone(
          tf_utils.read_stats_proto("/does/not/exist/", "eval")
      )
  
imports: import os
  import uuid
  import ml_metadata
  import tensorflow_model_analysis
  from absl.testing import absltest
  from ml_metadata.proto import metadata_store_pb2
  from model_card_toolkit.model_card import ModelCard, PerformanceMetric
  from model_card_toolkit.utils import tf_utils
  from model_card_toolkit.utils.testdata import tf_testdata_utils
label_desc: Use image node_id 18 for calling the TfUtilsTest obj's underlying member method code with example usage: obj.test_read_stats_proto_with_invalid_uri() without return types