Nothing
#' Check if string matches pattern for an instrumentation key.
#' @param x A string containing nothing else but an instrumentation key.
#' @return Logical value.
#' @export
is_instrumentation_key <- function(x) {
grepl('[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{8}', x)
}
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