@class NSOperationQueue; @interface VSViewServiceRequestCenter : NSObject @property (retain, nonatomic) NSOperationQueue *requestQueue; @property (retain, nonatomic) NSOperationQueue *completionQueue; + (id)sharedViewServiceRequestCenter; - (id)init; - (void).cxx_destruct; - (id)enqueueCompletionHandlerBlock:(id /* block */)a0; - (id)enqueueRequest:(id)a0 withAccountManagerDelegate:(id)a1 operationDelegate:(id)a2 completionHandler:(id /* block */)a3; @end