     }
 
     // swiftlint:disable function_parameter_count function_body_length
-    func handleMessageSocketEventForTimeShift(socket: WebSocket, event: WebSocketEvent, userId: String, threadId: String, threadKey: String, completion: (Result<Void, NicoError>) -> Void) {
+    func handleTimeShiftMessageSocketEvent(socket: WebSocket, event: WebSocketEvent, userId: String, threadId: String, threadKey: String, completion: (Result<Void, NicoError>) -> Void) {
         // log.debug(event)
         switch event {
         case .connected:

                resFrom: -200,
                threadKey: threadKey)
        case .text(let text):
            let result = processMessageSocketTimeShiftTextEvent(text: text)
            switch result {
            case .pingContentStart:
                timeShiftChatCountIn1ThreadRequest = 0

        case unknown
    }

    func processTimeShiftMessageSocketTextEvent(text: String) -> MessageSocketProcessResult {
        guard let data = text.data(using: .utf8) else { return .unknown }
        let decoder = JSONDecoder()
        decoder.keyDecodingStrategy = .convertFromSnakeCase
        if let pc = try? decoder.decode(WebSocketPingContentData.self, from: data) {
            if pc.ping.content == "rs:0" {
                return .pingContentStart
            } else if pc.ping.content == "rf:0" {
                return .pingContentFinish
            }
            return .unknown
