/**
     * Sets the source of the POM to process. Eventually, either {@link #setModelSource(ModelSource)} or
     * {@link #setPomFile(File)} must be set.
     *
     * @param modelSource The source of the POM to process, may be {@code null}.
     * @return This request, never {@code null}.
     */
    ModelBuildingRequest setModelSource(ModelSource modelSource);

    /**
     * Gets the POM file of the project to build.

                if (resolveResult.getRepository() instanceof WorkspaceRepository) {
                    modelRequest.setPomFile(pomArtifact.getFile());
                } else {
                    modelRequest.setModelSource(new ArtifactModelSource(
                            pomArtifact.getPath(),
                            pomArtifact.getGroupId(),
                            pomArtifact.getArtifactId(),