@Override
    public Set<PersonAttributes> getPeopleWithMultivaluedAttributes(final Map<String, List<Object>> query,
                                                                    final PersonAttributeDaoFilter filter,
                                                                    final Set<PersonAttributes> resultPeople) {
        val list = query.get("username");
        if (list != null && !list.isEmpty()) {
            val newMap = new HashMap(this.getBackingMap());
            newMap.put("username", list);
            return Set.of(new SimplePersonAttributes(newMap));
        }
        return Set.of(backingPerson);
    }
Provides the ability to define static attributes and values.

@author Misagh Moayyed
@since 7.1.0
core/cas-server-core-authentication-api/src/main/java/org/apereo/cas/authentication/attribute/StubPersonAttributeDao.java