code: def subtest_normal_distrib(self, xs, mean, std):
      _, pvalue = stats.kstest(xs, "norm", (mean, std))
      self.assertGreater(pvalue, 3e-3)
  
file_path: chainerrl/tests/misc_tests/test_random.py
imports: import timeit
  import unittest
  from chainer import testing
  from chainer.testing import condition
  import numpy
  from scipy import stats
  from chainerrl.misc.random import sample_n_k
label_desc: Use image node_id 6 for calling the TestSampleNK obj's underlying member method code with example usage: obj.subtest_normal_distrib(xs, mean, std) without return types