private static List<X509Certificate> readOperatorCertificates(Inspector array) {
        return SlimeUtils.entriesStream(array)
                .map(Inspector::asString)
                .map(X509CertificateUtils::fromPem)
                .toList();
    }
Parameters for preparing an application. Immutable.

@author Ulf Lilleengen
configserver/src/main/java/com/yahoo/vespa/config/server/session/PrepareParams.java