code: def get_below_right_key_rect(self):
          
  
          key_below_right = self.row + 1, self.col + 1, self.tab
  
          border_width_right = \
              float(self.cell_attributes[self.key]["borderwidth_right"]) / 2.0
          border_width_bottom = \
              float(self.cell_attributes[self.key]["borderwidth_bottom"]) / 2.0
  
          rect_below_right = (self.x+self.width, self.y-self.height,
                              border_width_right, border_width_bottom)
          return key_below_right, rect_below_right
docs: Returns tuple key rect of below right cell