def user_ids(self):
        return self._user_ids
Create a new FileAttachment for a FileDiff.
dataset/ETHPy150Open muricoca/crab/scikits/crab/models/classes.py/MatrixPreferenceDataModel.user_ids--crossover with--dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/attachments/managers.py/FileAttachmentManager.create_from_filediff