@class NSString; @interface _MTLObjectWithLabel : NSObject { NSString *_label; struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _labelLock; } @property (copy) NSString *label; - (id)init; - (void)dealloc; - (id)label; - (void)setLabel:(id)a0; - (id)retainedLabel; @end