code: def test_bool(self):
      BasicTestMappingProtocol.test_bool(self)
      self.assertTrue(not self._empty_mapping())
      self.assertTrue(self._full_mapping({"x": "y"}))
      self.assertTrue(bool(self._empty_mapping()) is False)
      self.assertTrue(bool(self._full_mapping({"x": "y"})) is True)
  
imports: import unittest
  import collections
  from test.support import Py_C_RECURSION_LIMIT
label_desc: Use image node_id 2 for calling the TestMappingProtocol obj's underlying member method code with example usage: obj.test_bool() without return types