@ConfigSync(shared=1)
  def GetInstanceNodes(self, inst_uuid):
    return self._UnlockedGetInstanceNodes(inst_uuid)
get config data from elements
dataset/ETHPy150Open ganeti/ganeti/lib/config/__init__.py/ConfigWriter.GetInstanceNodes--crossover with--dataset/ETHPy150Open UniversalDevicesInc/Polyglot/polyglot/element_manager/__init__.py/ElementManager.config