static OperationArgumentResolver namespaceResolver(boolean server) {
        return OperationArgumentResolver.of(WebServerNamespace.class,
                                            () -> server ? WebServerNamespace.SERVER
                                                         : WebServerNamespace.MANAGEMENT);
    }
A utility class to support {@link WebServerNamespace} which was introduced from Spring Boot 2.6+.
The methods in this class are called only if {@link WebOperationService#HAS_WEB_SERVER_NAMESPACE} is
{@code true}.
spring/boot3-actuator-autoconfigure/src/main/java/com/linecorp/armeria/spring/actuate/WebOperationServiceUtil.java