Per @mr-c, Simple examples: https://github.com/ged-lab/khmer/pull/278 https://github.com/ged-lab/khmer/pull/198 https://github.com/ged-lab/khmer/pull/285 Complicated example: https://github.com/ged-lab/khmer/pull/237