@Override
    public SignedIdentityDocument getNodeIdentityDocument(String host, int documentVersion) {
        return getIdentityDocument(host, "node", documentVersion).orElseThrow();
    }
Default implementation of {@link IdentityDocumentClient}

@author bjorncs
vespa-athenz/src/main/java/com/yahoo/vespa/athenz/identityprovider/client/DefaultIdentityDocumentClient.java