code: def check_stddev(self, is_gpu):
      if is_gpu:
          stddev1 = self.gpu_dist.stddev.data
      else:
          stddev1 = self.cpu_dist.stddev.data
      stddev2 = self.scipy_dist.std(**self.scipy_params)
      array.assert_allclose(stddev1, stddev2)
  
imports: import functools
  import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer.testing import array
  from chainer.testing import attr
  from chainer import utils
label_desc: Use image node_id 36 for calling the distribution_unittest obj's underlying member method code with example usage: obj.check_stddev(is_gpu) without return types