code: def drop_columns(self, model, *names, **kwargs):
          
          fields = [field for field in model._meta.fields.values() if field.name in names]
          cascade = kwargs.pop('cascade', True)
          for field in fields:
              self.__del_field__(model, field)
              if field.unique:
                  index_name = make_index_name(model._meta.table_name, [field.column_name])
                  self.ops.append(self.migrator.drop_index(model._meta.table_name, index_name))
              self.ops.append(
                  self.migrator.drop_column(
                      model._meta.table_name, field.column_name, cascade=cascade))
          return model
docs: Remove fields from model.