}

    @Nonnull
    static ModelBuilderRequestBuilder builder() {
        return new ModelBuilderRequestBuilder();
    }

    @Nonnull
    static ModelBuilderRequestBuilder builder(ModelBuilderRequest request) {
        return new ModelBuilderRequestBuilder(request);
    }

    @NotThreadSafe
    class ModelBuilderRequestBuilder {
        Session session;
        RequestTrace trace;

            throws ModelBuilderException {
        InternalSession iSession = InternalSession.from(session);
        ModelBuilderRequest.ModelBuilderRequestBuilder request = ModelBuilderRequest.builder();
        request.requestType(ModelBuilderRequest.RequestType.BUILD_CONSUMER);
        request.session(iSession);
        request.source(src);