@class NSData; @interface NSURLSessionWebSocketTask : NSURLSessionTask @property long long maximumMessageSize; @property (readonly) long long closeCode; @property (readonly, copy) NSData *closeReason; - (void)sendMessage:(id)a0 completionHandler:(id /* block */)a1; - (void)receiveMessageWithCompletionHandler:(id /* block */)a0; - (void).cxx_destruct; - (void)cancelWithCloseCode:(long long)a0 reason:(id)a1; - (void)sendPingWithPongReceiveHandler:(id /* block */)a0; @end