def set_config(self, config_instance):
        self.config = config_instance
        return self
returns MDFCustomNode from the pickled results of _pickle_custom_node
dataset/ETHPy150Open dossier/dossier.web/dossier/web/builder.py/WebBuilder.set_config--crossover with--dataset/ETHPy150Open manahl/mdf/mdf/ctx_pickle.py/_unpickle_custom_node