#' Countries by name and their ISO 3166-1 alpha-3 codes.
#'
#' A dataset containing the names and three-letter ISO country codes of
#' 249 countries, dependent territories, and special areas of geographical
#' interest.
#'
#' \itemize{
#' \item name. Name of country/area.
#' \item code ISO 3166-1 alpha-3 code for the country/area.
#' ...
#' }
#'
#' @docType data
#' @keywords datasets
#' @name country_codes
#' @source \url{http://en.wikipedia.org/wiki/ISO_3166-1_alpha-3}
NULL
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