[stderr]
/apps/cellranger/3.1.0/miniconda-cr-cs/4.3.21-miniconda-cr-cs-c10/lib/python2.7/site-packages/tables/atom.py:393: FlavorWarning: support for unicode type is very limited, and only works for strings that can be cast as ascii
  "and only works for strings that can be cast as ascii", FlavorWarning)
