code: def test_atanh_(self):
      self.run_test(
          "def atanh_(a):\n from math import atanh\n return atanh(a)",
          0.1,
          atanh_=[float],
      )
  
imports: from pythran.tests import TestEnv
label_desc: Use image node_id 9 for calling the TestMath obj's underlying member method code with example usage: obj.test_atanh_() without return types