code: def testGradient2D(self):
      for axis in (-1, 0, 1):
          for exclusive in [True, False]:
              for reverse in [True, False]:
                  self._compareGradient(
                      [5, 10], axis, exclusive, reverse
                  )
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import gradient_checker
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 17 for calling the CumsumTest obj's underlying member method code with example usage: obj.testGradient2D() without return types