require_pkg = function(pkg) {
func = deparse(sys.calls()[[sys.nframe()-1]])
if (!requireNamespace(pkg, quietly = TRUE)) {
cli_stop("Function {.code {func}} requires the package {.pkg {pkg}} is installed.")
}
}
require_gert = function() {
require_pkg("gert")
}
require_styler = function() {
require_pkg("styler")
}
styler_available = function() {
"styler" %in% rownames(utils::installed.packages())
}
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