post_install() {cat<< EOF==> Put the followings in your \$HOME/.emacs file to use fold-dwim(require 'fold-dwim)(global-set-key (kbd "<f7>") 'fold-dwim-toggle)(global-set-key (kbd "<M-f7>") 'fold-dwim-hide-all)(global-set-key (kbd "<S-M-f7>") 'fold-dwim-show-all)EOF}