code: def setup(self, float_dtype):
      dtype = float_dtype
      ksize = self.ksize
      device = chainerx.get_default_device()
      if (
          device.backend.name == "cuda"
          and len(ksize) != 2
          and len(ksize) != 3
      ):
          raise unittest.SkipTest(
              "cuDNN supports only 2 and 3 spatial dimensions"
          )
  
      if dtype == "float16":
          self.check_backward_options.update(
              {"rtol": 5e-2, "atol": 1e-3}
          )
          self.check_double_backward_options.update(
              {"rtol": 5e-2, "atol": 1e-3}
          )
  
      self.dtype = dtype
  
imports: import functools
  from operator import mul
  import unittest
  import chainer
  import numpy
  import pytest
  import chainerx
  from chainerx_tests import op_utils
label_desc: Use image node_id 1 for calling the TestMaxPool obj's underlying member method code with example usage: obj.setup(float_dtype) without return types