7.1.2 Documenting datasets

#' World Health Organization TB data
#'
#' A subset of data from the World Health Organization Global Tuberculosis
#' Report ...
#'
#' @format ## `who`
#' A data frame with 7,240 rows and 60 columns:
#' \describe{
#'   \item{country}{Country name}
#'   \item{iso2, iso3}{2 & 3 letter ISO country codes}
#'   \item{year}{Year}
#'   ...
#' }
#' @source <https://www.who.int/teams/global-tuberculosis-programme/data>
"who"

Note the tags @format and @source

Never @export a data set.