code: def test_values(self):
      BasicTestMappingProtocol.test_values(self)
      d = self._full_mapping({1: 2})
      self.assertEqual(list(d.values()), [2])
  
imports: import unittest
  import collections
  from test.support import Py_C_RECURSION_LIMIT
label_desc: Use image node_id 4 for calling the TestMappingProtocol obj's underlying member method code with example usage: obj.test_values() without return types