/** The shortcut of building a simple message object to all platforms and all audiences */
 public static PushPayload messageAll(String msgContent) {
   return new Builder()
       .setPlatform(Platform.all())
       .setAudience(Audience.all())
       .setMessage(Message.content(msgContent))
       .build();
 }
 /**
  * The shortcut of building a simple alert notification object to all platforms and all audiences
  */
 public static PushPayload alertAll(String alert) {
   return new Builder()
       .setPlatform(Platform.all())
       .setAudience(Audience.all())
       .setNotification(Notification.alert(alert))
       .build();
 }