code: def test_sxpy(self):
      code = """
  def sxpy(x, y):
      def duad(xi, yi): return xi + yi
      return list(map(duad, x, y))
  """
      self.run_test(
          code,
          [1, 2, 3],
          [0.0, 2.0, 4.0],
          sxpy=[List[int], List[float]],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import *
label_desc: Use image node_id 5 for calling the TestCopperhead obj's underlying member method code with example usage: obj.test_sxpy() without return types