def _GetDisksToTransfer(self):
    if self._SnapshotsReady():
      return self._snapshots
    else:
      return self._lu.cfg.GetInstanceDisks(self._instance.uuid)
returns True or False depending on to the index and the item on the
dataset/ETHPy150Open ganeti/ganeti/lib/masterd/instance.py/ExportInstanceHelper._GetDisksToTransfer--crossover with--dataset/ETHPy150Open eoyilmaz/anima/anima/ui/models.py/VersionTreeModel.hasChildren