def remove_format(self, mime_type):
        raise NotImplementedError
Generate SQL to transform an existing foreign key
dataset/ETHPy150Open nucleic/enaml/enaml/mime_data.py/MimeData.remove_format--crossover with--dataset/ETHPy150Open perseas/Pyrseas/pyrseas/dbobject/constraint.py/ForeignKey.diff_map