code: def PositionBox(position, *args, **kwargs):
      " Delegate the boxing. "
      obj = position.target
      return getattr(position.target, 'box_class', Box)(obj, *args, **kwargsf PositionBox(position, *args, **kwargs):
      " Delegate the boxing. "
      obj = position.target
      return getattr(position.target, 'box_class', Box)(obj, *args, **kwargs)
docs: Delegate the boxing.