code: def _get_serialized_fingerprint_def(self):
      return fingerprint_pb2.FingerprintDef(
          saved_model_checksum=1,
          graph_def_program_hash=2,
          signature_def_hash=3,
          saved_object_graph_hash=4,
          checkpoint_hash=5,
          version=versions_pb2.VersionDef(producer=6),
      ).SerializeToString()
  
imports: import os
  from tensorflow.core.framework import summary_pb2
  from tensorflow.core.framework import versions_pb2
  from tensorflow.core.protobuf import fingerprint_pb2
  from tensorflow.python.eager import test
  from tensorflow.python.saved_model.pywrap_saved_model import metrics
label_desc: Use image node_id 2 for calling the MetricsTest obj's underlying member method code with example usage: obj._get_serialized_fingerprint_def() and returns: fingerprint_pb2