code: def testMaxPoolGradSamePadding2_1_3d(self):
      self._VerifyGradient(
          nn_ops.max_pool3d,
          gen_nn_ops.max_pool3d_grad,
          input_sizes=[2, 3, 2, 4, 1],
          ksize=[2, 2, 2],
          strides=[1, 1, 1],
          padding="SAME",
          pool_grad_grad_func=gen_nn_ops.max_pool3d_grad_grad,
      )
  
imports: import numpy
  from tensorflow.compiler.tests import xla_test
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_nn_ops
  from tensorflow.python.ops import nn_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 15 for calling the Pooling3DTest obj's underlying member method code with example usage: obj.testMaxPoolGradSamePadding2_1_3d() without return types