def _create_model_service(self):

        # Determine which contributed project factory to use.
        factory = self._get_contributed_project_factory()

        # Make sure the factory has a reference to our Envisage application.
        factory.application = self.application

        # Create the project service instance.
        result = ModelService(self.application, factory)

        return result
Always print a warning message to stderr.
dataset/ETHPy150Open enthought/envisage/envisage/ui/single_project/project_plugin.py/ProjectPlugin._create_model_service--crossover with--dataset/ETHPy150Open skyostil/tracy/src/generator/Cheetah/CheetahWrapper.py/CheetahWrapper.warn