class_docstr: Abstract class that provides helpers for TensorFlow benchmarks.
code: def is_abstract(cls):
      # mro: (_BenchmarkRegistrar, Benchmark, TensorFlowBenchmark) means
      # this is TensorFlowBenchmark.
      return len(cls.mro()) <= 3
  
imports: import math
  import numbers
  import os
  import re
  import sys
  import time
  import types
  from absl import app
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.core.protobuf import rewriter_config_pb2
  from tensorflow.core.util import test_log_pb2
  from tensorflow.python.client import timeline
  from tensorflow.python.framework import ops
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import tf_inspect
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 2 for calling the TensorFlowBenchmark obj's underlying member method code with example usage: obj.is_abstract(cls) and returns: unknown