@Override
    protected ApiDocRegisterDTO.ApiExt customApiDocExt(final ApiDocRegisterDTO.ApiExt ext) {
        ext.setProtocol(protocol);
        ext.setAddPrefixed(addPrefixed);
        return ext;
    }
Instantiates a new context refreshed event listener.

@param clientConfig                   the shenyu client config
@param shenyuClientRegisterRepository the shenyuClientRegisterRepository
@param env                            the env
shenyu-client/shenyu-client-http/shenyu-client-springmvc/src/main/java/org/apache/shenyu/client/springmvc/init/SpringMvcClientEventListener.java