code: def test_as_ones(self):
      self.run_test(
          "def as_ones(x): return list(map(lambda xi: 1, x))",
          [0.0, 0.0, 0.0],
          as_ones=[List[float]],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import *
label_desc: Use image node_id 7 for calling the TestCopperhead obj's underlying member method code with example usage: obj.test_as_ones() without return types