export class KeyCode {
   static backspace: 8;
   static tab: 9;
   static enter: 13;
   static shift: 16;
   static ctrl: 17;
   static alt: 18;
   static esc: 27;
   static space: 32;
   static pageUp: 33;
   static pageDown: 34;
   static end: 35;
   static home: 36;
   static left: 37;
   static up: 38;
   static right: 39;
   static down: 40;
   static insert: 45;
   static "delete": 46;
   static a: 65;
}