def schema_editor(self, *args, **kwargs):
        if self.SchemaEditorClass is None:
            raise NotImplementedError(
                'The SchemaEditorClass attribute of this database wrapper is still None')
        return self.SchemaEditorClass(self, *args, **kwargs)
Use a different manifest, just for the current instantiation.
dataset/ETHPy150Open django/django/django/db/backends/base/base.py/BaseDatabaseWrapper.schema_editor--crossover with--dataset/ETHPy150Open android/tools_repo/manifest_xml.py/XmlManifest.Override