private void sendSuccessResponse(ChannelHandlerContext ctx, boolean isClose, String callback) {
        sendResponse(ctx, DataProxyErrCode.SUCCESS.getErrCode(),
                DataProxyErrCode.SUCCESS.getErrMsg(), isClose, callback);
    }
Get attributes from decoder

@param decoder the decode object
@param reqAttrs the attributes
inlong-dataproxy/dataproxy-source/src/main/java/org/apache/inlong/dataproxy/source/httpMsg/HttpMessageHandler.java