code: def test_standard_exponential_ks(self, dtype):
      self.check_ks(0.05)(size=2000, dtype=dtype)
  
imports: import functools
  import unittest
  import numpy
  import cupy
  from cupy import testing
  from cupy.testing import _condition
label_desc: Use image node_id 3 for calling the StandardExponential obj's underlying member method code with example usage: obj.test_standard_exponential_ks(dtype) without return types