@class MRNowPlayingState; @interface MRSetStateMessage : MRProtocolMessage { MRNowPlayingState *_state; } @property (readonly, nonatomic) MRNowPlayingState *state; - (id)initWithUnderlyingCodableMessage:(id)a0 error:(id)a1; - (void).cxx_destruct; - (unsigned long long)type; - (id)initWithNowPlayingState:(id)a0 encoding:(long long)a1; @end