def _GetDisksToTransfer(self):
    if self._SnapshotsReady():
      return self._snapshots
    else:
      return self._lu.cfg.GetInstanceDisks(self._instance.uuid)
Returns disks to be transferred, whether snapshots or instance disks.
dataset/ETHPy150Open ganeti/ganeti/lib/masterd/instance.py/ExportInstanceHelper._GetDisksToTransfer