Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.

[Ginso]

By now, apps should be targeting SDK 31 and this means that for PendingIntents FLAG_IMMUTABLE or FLAG_MUTABLE must be specified. I don't understand much of this, so could you please tell me, what i should use? Occurences: MusicService.java line 247 PlayingNotificationImpl24.java line 52, 57 and 120