1 if (typeof MBX == 'undefined') {
  2     /** @namespace
  3         @ignore
  4     */
  5     if (typeof _ == 'undefined') {
  6         throw new Error("Mamoo depends upon the underscore library");
  7     }
  8     if (typeof EventEmitter == 'undefined') {
  9         throw new Error("Mamoo depends upon the EventEmitter library");
 10     }
 11     MBX = {};
 12     _(MBX).extend(EventEmitter.prototype);
 13 }
 14