To cite package ‘keyed’ in publications use:

  Colling G (2026). _keyed: Explicit Key Assumptions for Flat-File
  Data_. R package version 0.2.0, <https://github.com/gcol33/keyed>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {keyed: Explicit Key Assumptions for Flat-File Data},
    author = {Gilles Colling},
    year = {2026},
    note = {R package version 0.2.0},
    url = {https://github.com/gcol33/keyed},
  }