DocTypeTag-class: @docType: set the documentation type of the object.
Description
Roxygen3 will guess the doctype for you - the only time you should need to
specify it yourself for package documentation (@docType package)
which typically document the code NULL.
Arguments
Tag Usage
#' @docType data
#' @docType package
#' @docType custom doctype
Details
You can use any doctype, but it will only be included in
the Rd file if it is one of the standard R doctypes: data, package,
methods and class.