text: 
  from project import motor
  from project import variables
  
  
  def line_feed():
      """Feed the paper in by the height of one line, plus the line spacing,
      which should really be specified as a variable in the 'Initialize' MyBlock.
      """
      motor['B'].on_for_degrees(-20, variables['Seg4'])
      motor['B'].on_for_degrees(-20, 20)
  