To cite package ‘arity’ in publications use:

  Larsson J (2026). _arity: Format R Code with Arity_. R package
  version 0.1.0, <https://github.com/jolars/arity-r>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {arity: Format R Code with Arity},
    author = {Johan Larsson},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/jolars/arity-r},
  }