To cite package ‘docstring’ in publications use:

Kurkiewicz D (2021). docstring: Provides Docstring Capabilities to R Functions. R package version 1.0.0, https://github.com/dasonk/docstring.

Corresponding BibTeX entry:

  @Manual{,
    title = {docstring: Provides Docstring Capabilities to R
      Functions},
    author = {Dason Kurkiewicz},
    year = {2021},
    note = {R package version 1.0.0},
    url = {https://github.com/dasonk/docstring},
  }