@Override
    public String rpcType() {
        return RpcTypeEnum.DUBBO.getName();
    }
The type dubbo shenyu context decorator.
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-rpc/shenyu-plugin-dubbo/shenyu-plugin-dubbo-common/src/main/java/org/apache/shenyu/plugin/dubbo/common/context/DubboShenyuContextDecorator.java