static ModelBuilderRequest build(@Nonnull Session session, @Nonnull Path path) {
        return builder()
                .session(requireNonNull(session, "session cannot be null"))
                .source(Sources.buildSource(path))
                .build();
    }

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

    @Nonnull