@JsonIgnore
    public Optional<String> getDeviceId() {
        return Optional.ofNullable((String) properties.get("device_id"));
    }
This is {@link AuthZenSubject}.

@author Misagh Moayyed
@since 7.3.0
support/cas-server-support-heimdall/src/main/java/org/apereo/cas/heimdall/authzen/AuthZenSubject.java