code: def _validate_sharded_stats_output(self, stats_prefix):
      stats = tfdv.load_sharded_statistics(stats_prefix).proto()
      self._validate_stats(stats)
  
imports: import os
  import tempfile
  from absl.testing import absltest
  from absl.testing import parameterized
  import tensorflow_data_validation
  from tfx.components.statistics_gen import executor
  from tfx.components.util import examples_utils
  from tfx.dsl.io import fileio
  from tfx.types import artifact_utils
  from tfx.types import standard_artifacts
  from tfx.types import standard_component_specs
  from tfx.utils import json_utils
  from tensorflow_metadata.proto.v0 import schema_pb2
label_desc: Use image node_id 4 for calling the ExecutorTest obj's underlying member method code with example usage: obj._validate_sharded_stats_output(stats_prefix) without return types