code: def setUp(self):
      self.longMessage = True
  
file_path: model-analysis/tensorflow_model_analysis/eval_saved_model/graph_ref_test.py
imports: import tensorflow
  from tensorflow_model_analysis.eval_saved_model import encoding
  from tensorflow_model_analysis.eval_saved_model import graph_ref
  from tensorflow.core.protobuf import meta_graph_pb2
label_desc: Use image node_id 1 for calling the GraphRefTest obj's underlying member method code with example usage: obj.setUp() without return types