export function autoClearSubscriptions(constructor: Function) {
  return class extends constructor {
    ngOnDestroy() {
      console.log('Cleaning....')
      // Auto Clean things
      if(constructor.prototype.subscriptions) {
        return;
      }
      constructor.prototype.subscriptions.length = 0;
      // call the original method
      constructor.prototype.ngOnDestroy.apply(this, arguments);
    }
  }
}