System/Library/PrivateFrameworks/ActionKit.framework

WFSelectMusicAction.h

NSObject
>
WFAction

@interface WFSelectMusicAction : WFAction

@property (readonly, nonatomic) BOOL selectMultiple;

+ (id)userInterfaceProtocol;
+ (id)userInterfaceXPCInterface;

- (void)runWithRemoteUserInterface:(id)a0 input:(id)a1;

@end