code: def test_standard_gamma(self):
      self.generate(shape=self.shape, size=(3, 2))
  
imports: import functools
  import unittest
  import numpy
  import cupy
  from cupy import testing
  from cupy.testing import _condition
label_desc: Use image node_id 1 for calling the StandardGamma obj's underlying member method code with example usage: obj.test_standard_gamma() without return types