code: def hide_object(self, key, hide=True):
          '''hide an object on the map by key'''
          self.object_queue.put(SlipHideObject(key, hide)f hide_object(self, key, hide=True):
          '''hide an object on the map by key'''
          self.object_queue.put(SlipHideObject(key, hide))
docs: hide an object on the map by key