@interface IMDSoundUtilities : NSObject + (BOOL)_wasDowngraded:(id)a0; + (void)_playSoundType:(long long)a0; + (unsigned int)_installSystemSound:(id)a0; + (BOOL)_isAcknowledgmentMessage:(id)a0; + (BOOL)_isAssociatedMessage:(id)a0; + (BOOL)_isAutoPlay:(id)a0; + (BOOL)_isSMSMessage:(id)a0; + (BOOL)_isSuppressedForGUID:(id)a0; + (void)_playAcknowledgmentSentSound; + (void)_playSMSSound; + (long long)_smsSoundsToPlay; + (long long)_soundTypeForMessage:(id)a0; + (void)_stopSuppressingForGUID:(id)a0; + (void)playMessageSentSoundIfNeeded:(id)a0; @end