code: def test_tanh_(self):
      self.run_test(
          "def tanh_(a):\n from math import tanh\n return tanh(a)",
          1,
          tanh_=[int],
      )
  
imports: from pythran.tests import TestEnv
label_desc: Use image node_id 14 for calling the TestMath obj's underlying member method code with example usage: obj.test_tanh_() without return types