public Builder setGroupAlertBehavior(@GroupAlertBehavior int groupAlertBehavior) {
            mGroupAlertBehavior = groupAlertBehavior;
            return this;
        }
Sets the group alert behavior for this notification. Use this method to mute this
notification if alerts for this notification's group should be handled by a different
notification. This is only applicable for notifications that belong to a
{@link #setGroup(String) group}. This must be called on all notifications you want to
mute. For example, if you want only the summary of your group to make noise, all
children in the group should have the group alert behavior {@link #GROUP_ALERT_SUMMARY}.

<p> The default value is {@link #GROUP_ALERT_ALL}.</p>
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java