build a XenSCE instance for GBM demo data from TENx

build_demo()

Note

This can take some time to run, especially if no resources have been cached yet. The data are derived from `https://www.10xgenomics.com/datasets/ffpe-human-brain-cancer-data-with-human-immuno-oncology-profiling-panel-and-custom-add-on-1-standard`.

Examples

if (interactive()) {
  gbmdemo = build_demo()
  gbmdemo
}