code: def test_chisquare_ks(self):
      if not isinstance(self.df, float):
          self.skipTest("Statistical checks only for scalar `df`")
      self.check_ks(0.05)(df=self.df, size=2000)
  
imports: import functools
  import unittest
  import numpy
  import cupy
  from cupy import testing
  from cupy.testing import _condition
label_desc: Use image node_id 2 for calling the Chisquare obj's underlying member method code with example usage: obj.test_chisquare_ks() without return types