https://access.redhat.com/webassets/avalon/d/red_hat_build_of_keycloak-26/javadocs/org/keycloak/migration/migrators/MigrateTo1_4_0.html
MigrateTo1_4_0 (Keycloak Docs Distribution 26.0.17.redhat-00001 API)
declaration: package: org.keycloak.migration.migrators, class: MigrateTo1_4_0
keycloakdocs