private static Optional<String> getDefaultGeoLocation(final GeoLocationRequest loc) {
        return Optional.of(loc.getLatitude() + '-' + loc.getLongitude());
    }
Provides the geo location for device fingerprint generation.

@author Misagh Moayyed
@since 6.1.0
support/cas-server-support-trusted-mfa-core/src/main/java/org/apereo/cas/trusted/web/flow/fingerprint/GeoLocationDeviceFingerprintExtractor.java