@Override
    public String toString() {
        return "ZoneEndpoint{" +
               "isPublicEndpoint=" + isPublicEndpoint +
               ", isPrivateEndpoint=" + isPrivateEndpoint +
               ", allowedUrns=" + allowedUrns +
               '}';
    }
List of URNs for the given access type.
config-provisioning/src/main/java/com/yahoo/config/provision/ZoneEndpoint.java