@Override
    public final Set<PersonAttributes> getPeople(final Map<String, Object> query,
                                                 final PersonAttributeDaoFilter filter,
                                                 final Set<PersonAttributes> resultPeople) {
        var multivaluedSeed = toMultivaluedMap(query);
        return this.getPeopleWithMultivaluedAttributes(multivaluedSeed, filter, resultPeople);
    }
This is {@link AbstractFlatteningPersonAttributeDao}.

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