https://access.redhat.com/webassets/avalon/d/red_hat_build_of_keycloak-26/javadocs/org/keycloak/services/x509/X509ClientCertificateLookupFactory.html
X509ClientCertificateLookupFactory (Keycloak Docs Distribution 26.0.17.redhat-00001 API)
declaration: package: org.keycloak.services.x509, interface: X509ClientCertificateLookupFactory
keycloakdocsdistributionredhatapi