code: def test_dict_from_keys(self):
      return self.run_test(
          "def dict_from_keys(a): return dict.fromkeys(a), dict.fromkeys(a,1)",
          [1.5, 2.5, 3.5],
          dict_from_keys=[List[float]],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import Dict, List
label_desc: Use image node_id 17 for calling the TestDict obj's underlying member method code with example usage: obj.test_dict_from_keys() and returns: self