code: def test_modf_(self):
      self.run_test(
          "def modf_(a):\n from math import modf\n return modf(a)",
          2,
          modf_=[int],
      )
  
imports: from pythran.tests import TestEnv
label_desc: Use image node_id 35 for calling the TestMath obj's underlying member method code with example usage: obj.test_modf_() without return types