@class NSString, MFMessageLoadingContext, _MFMessageContentURLProtocolRegistry, EFCancelationToken, EFPromise; @interface MFMessageContentURLProtocol : NSURLProtocol @property (class, retain, nonatomic) _MFMessageContentURLProtocolRegistry *registry; @property (class, readonly) NSString *scheme; @property (readonly) EFCancelationToken *token; @property (readonly) MFMessageLoadingContext *loadingContext; @property (retain, nonatomic) EFPromise *promise; + (void)initialize; + (BOOL)requestIsCacheEquivalent:(id)a0 toRequest:(id)a1; + (BOOL)canInitWithRequest:(id)a0; + (id)canonicalRequestForRequest:(id)a0; + (id)URLForLoadingContext:(id)a0; + (id)loadingContextForURL:(id)a0; - (void)stopLoading; - (void)dealloc; - (void)startLoading; - (void).cxx_destruct; - (id)initWithRequest:(id)a0 cachedResponse:(id)a1 client:(id)a2; - (id)_cachedResponseWithData:(id)a0 error:(id *)a1; - (void)_didLoadContentEvent:(id)a0 error:(id)a1; @end