def _JobTimestamp(fn):
  return _JobUnavail(compat.partial(_JobTimestampInner, fn))
what drop actions do we support, treat move or copy as an insert
dataset/ETHPy150Open ganeti/ganeti/lib/query.py/_JobTimestamp--crossover with--dataset/ETHPy150Open shotgunsoftware/pyqt-uploader/uploader.py/ShotgunFileModel.supportedDropActions