To cite package ‘gson’ in publications use:

  Yu G (2026). _gson: Base Class and Methods for 'gson' Format_. R
  package version 0.2.2, <https://github.com/yulab-smu/gson>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gson: Base Class and Methods for 'gson' Format},
    author = {Guangchuang Yu},
    year = {2026},
    note = {R package version 0.2.2},
    url = {https://github.com/yulab-smu/gson},
  }