def _full_mapping(self, data):
        x = self._empty_mapping()
        for key, value in data.items():
            x[key] = value
        return x
Verify that the external dependency references make sense.
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/test/test_userdict.py/TestMappingProtocol._full_mapping--crossover with--dataset/ETHPy150Open spinnaker/spinnaker/pylib/spinnaker/validate_configuration.py/ValidateConfig.verify_external_dependencies