code: def test_namespace_call_op_on_op(self):
      x = zero_out_op_1.namespace_zero_out([5, 4, 3, 2, 1])
      result = zero_out_op_1.namespace_zero_out(x)
      self.assertAllEqual(result, [5, 0, 0, 0, 0])
  
file_path: tensorflow-upstream/tensorflow/examples/adding_an_op/zero_out_1_test.py
imports: import os.path
  import tensorflow
  from tensorflow.examples.adding_an_op import zero_out_op_1
label_desc: Use image node_id 3 for calling the ZeroOut1Test obj's underlying member method code with example usage: obj.test_namespace_call_op_on_op() without return types