..generic:
  git2rdata: 0.3.1
  optimize: yes
  NA string: NA
  sorting: a
  hash: b2ebf427feaafc5f4dea639777f199ffcf9f85b0
  data_hash: edfd19ec22a7172eb5f7201197bc56da7fade50f
a:
  class: character
letters:
  class: character
