code: def set_focus(self, pos):
          "Set the focus in the underlying body widget."
          logging.debug('setting focus to %s ', pos)
          self.body.set_focus(posf set_focus(self, pos):
          "Set the focus in the underlying body widget."
          logging.debug('setting focus to %s ', pos)
          self.body.set_focus(pos)
docs: Set the focus in the underlying body widget.