code: def test_incr(self):
      self.run_test(
          "def incr(x): return list(map(lambda xi: xi + 1, x))",
          [0.0, 0.0, 0.0],
          incr=[List[float]],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import *
label_desc: Use image node_id 6 for calling the TestCopperhead obj's underlying member method code with example usage: obj.test_incr() without return types