private void setFlag(int mask, boolean value) {
            if (value) {
                mFlags |= mask;
            } else {
                mFlags &= ~mask;
            }
        }
Returns the bridge tag of the notification.

@return the bridge tag or null if not present.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java