[keycloak-user] Package "keycloak-server-spi-private" in KC 2.4.x

Hi Team, with KC 2.4.0.CR1 you introduced a new package "keycloak-server-spi-private“ and moved some classes to this package from the „keycloak-server-spi“, especially the KeycloakModelUtils class, which I used so far in an SPI. Is it intended to use and depend on the „private“ package in own SPIs/implementations or is it just for Keycloak private usage? Thanks, - Niko