code: def test_f(self):
      dfnum = self.dfnum
      dfden = self.dfden
      if isinstance(self.dfnum, list) or isinstance(self.dfden, list):
          dfnum = cupy.array(self.dfnum)
          dfden = cupy.array(self.dfden)
      self.generate(dfnum, dfden)
  
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 F obj's underlying member method code with example usage: obj.test_f() without return types