code: def test_dict_values_contains(self):
      return self.run_test(
          "def dict_viewvalues_contains(a):\n d=a.values()\n return 'a' in d, 'e' in d",
          {1: "a", 2: "b"},
          dict_viewvalues_contains=[Dict[int, str]],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import Dict, List
label_desc: Use image node_id 31 for calling the TestDict obj's underlying member method code with example usage: obj.test_dict_values_contains() and returns: self