def _version(self, argstr):
        return "DroneD/%s" % (copyright.version,)
does this node belong to the subtree node
dataset/ETHPy150Open OrbitzWorldwide/droned/droned/lib/droned/models/server.py/DroneServer._version--crossover with--dataset/ETHPy150Open cournape/Bento/bento/core/node.py/Node.is_child_of