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#' Test for Scala Reference
#'
#' @param x An arbitrary R object.
#'
#' @return Logical indicating whether \code{x} is an rscala reference.
#' @export
#'
#' @examples
#' is.scalaReference(c(1,2))
#'
is.scalaReference <- function(x) inherits(x,"rscalaReference")
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