code: def spawn(self, actor, aid=None, **params):
          '''Spawn a new actor from ``actor``.
          '''
          aid = aid or create_aid()
          future = actor.send('arbiter', 'spawn', aid=aid, **params)
          return actor_proxy_future(aid, futuref spawn(self, actor, aid=None, **params):
          '''Spawn a new actor from ``actor``.
          '''
          aid = aid or create_aid()
          future = actor.send('arbiter', 'spawn', aid=aid, **params)
          return actor_proxy_future(aid, future)
docs: Spawn a new actor from ``actor``.