code: def test_cosh_(self):
      self.run_test(
          "def cosh_(a):\n from math import cosh\n return cosh(a)",
          1.0,
          cosh_=[float],
      )
  
imports: from pythran.tests import TestEnv
label_desc: Use image node_id 15 for calling the TestMath obj's underlying member method code with example usage: obj.test_cosh_() without return types