public WearableExtender addPage(Notification page) {
            mPages.add(page);
            return this;
        }
Add an additional page of content to display with this notification. The current
notification forms the first page, and pages added using this function form
subsequent pages. This field can be used to separate a notification into multiple
sections.

@param page the notification to add as another page
@return this object for method chaining
@see NotificationCompat.WearableExtender#getPages
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java