Working on more example usages of io functions for ch25
Working on more example usages of io functions for ch25

meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand,meatballhat/box-o-sand