# Copyright 2018 Opening Reproducible Research (https://o2r.info)
#' Shell-instruction class yet to be implemented
#' @include Class-Instruction.R
#'
#' See official documentation at \url{https://docs.docker.com/engine/reference/builder/#shell}.
#'
#' @return object
#' @export
#' @family instruction classes
#'
#' @examples
#' #no example yet
setClass("Shell", contains = "Instruction")
#' Shell constructor yet to be implemented
#'
#' @param ... fields yet to be implemented
#'
#' @return the object
#' @export
#'
#' @examples
#' #no example yet
Shell <- function(...) {
stop("Constructor not yet implemented for this class.")
}
setMethod("docker_arguments",
signature(obj = "Shell"),
function(obj) {
stop("The generic function docker_arguments is not implemented for class ",
class(obj))
})
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