code: def testBroadcast(self):
      r0, r1 = self._GetGradientArgs([2, 3, 5], [1])
      self.assertAllEqual(r0, [])
      self.assertAllEqual(r1, [0, 1, 2])
  
imports: import itertools
  import threading
  import numpy
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import random_seed
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gradient_checker_v2
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import random_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops.gen_array_ops import broadcast_gradient_args
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the BroadcastSimpleTest obj's underlying member method code with example usage: obj.testBroadcast() without return types