.attachFormals <- function(fun, envir = NULL) {
if (is.null(envir)) envir <- parent.frame()
f <- formals(deparse(substitute(fun)))
f <- lapply(f, function(x) if(class(x) != "name") eval(x) else x)
mapply(assign, names(f), f, MoreArgs = list(envir = envir))
NULL
}
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