@SmithyInternalApi
    public static List<AuthSchemeValidator> getAuthSchemeValidators() {
        return LazyEndpointComponentFactoryHolder.INSTANCE.getAuthSchemeValidators();
    }
Gets loaded authentication scheme validators.

@return a list of {@link AuthSchemeValidator}s.
smithy-rules-engine/src/main/java/software/amazon/smithy/rulesengine/language/EndpointRuleSet.java