( COMMAND_MODE,
  COMMAND_INPUT_MODE,
  INSERT_MODE,
  REPLACE_MODE,
  VISUAL_BLOCK_MODE,
  VISUAL_LINE_MODE,
  VISUAL_MODE,
  DELETE_MODE,
  SEARCH_FORWARD_MODE,
  SEARCH_BACKWARD_MODE,
  GO_MODE,
  YANK_MODE
) = list(range(12))

( UP,
  DOWN,
  LEFT,
  RIGHT,
  HOME,
  END,
  PAGE_UP,
  PAGE_DOWN
) = list(range(8))

(FORWARD,
 BACKWARD) = list(range(2))
