@protocol _UITextAttributeDefaults; @interface _UITextAttributeDictionary : NSDictionary @property (readonly, nonatomic) id<_UITextAttributeDefaults> fallback; + (id)alloc; + (id)new; - (BOOL)usesFallbackForKey:(id)a0; - (id)initWithDictionary:(id)a0 fallback:(id)a1; - (id)sparseDictionary; - (BOOL)ignoresFallbackForKey:(id)a0; @end