Android版DSK中 AVIMConversation的mute 和 unmule方法的代码完全一样这是不是bug？

public void mute(AVIMConversationCallback callback) {
        this.sendCMDToPushService((String)null, AVIMOperation.CONVERSATION_MUTE, callback, (AVIMConversation.OperationCompleteCallback)null);
    }

    public void unmute(AVIMConversationCallback callback) {
        this.sendCMDToPushService((String)null, AVIMOperation.CONVERSATION_MUTE, callback, (AVIMConversation.OperationCompleteCallback)null);
    }