static AuthenticationAttributeReleasePolicy none() {
        return new AuthenticationAttributeReleasePolicy() {
            @Override
            public Map<String, List<Object>> getAuthenticationAttributesForRelease(final Authentication authentication,
                                                                                   final Assertion assertion, final Map<String, Object> model,
                                                                                   final RegisteredService service) {
                return new HashMap<>();
            }

            @Override
            public Map<String, List<Object>> getAuthenticationAttributesForRelease(final Authentication authentication,
                                                                                   final RegisteredService service) {
                return new HashMap<>();
            }
        };
    }
NoOp authentication attribute release policy.

@return the authentication attribute release policy
api/cas-server-core-api-validation/src/main/java/org/apereo/cas/validation/AuthenticationAttributeReleasePolicy.java