code: def _testLargeProto(self):
      # create a constant of size > 64MB.
      a = constant_op.constant(np.zeros([1024, 1024, 17]))
      # Serialize the resulting graph def.
      gdef = a.op.graph.as_graph_def()
      serialized = gdef.SerializeToString()
      unserialized = ops.Graph().as_graph_def()
      # Deserialize back. Protobuf python library should support
      # protos larger than 64MB.
      unserialized.ParseFromString(serialized)
      self.assertProtoEquals(unserialized, gdef)
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the ProtoTest obj's underlying member method code with example usage: obj._testLargeProto() without return types