code: def test_dict_setdefault(self):
      return self.run_test(
          "def dict_setdefault():\n a={1.5:2 }\n return a.setdefault(1.5) + a.setdefault(2, 18)",
          dict_setdefault=[],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import Dict, List
label_desc: Use image node_id 27 for calling the TestDict obj's underlying member method code with example usage: obj.test_dict_setdefault() and returns: self