code: def setUp(self):
      super(GraphsTest, self).setUp()
      all_fields = graphs.GRAPH_DATA_FIELDS + graphs.GRAPH_NUMBER_FIELDS
      self.graph = {k: k for k in all_fields}
  
file_path: graph_nets/graph_nets/tests/graphs_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  from graph_nets import graphs
  import tensorflow
label_desc: Use image node_id 1 for calling the GraphsTest obj's underlying member method code with example usage: obj.setUp() without return types