Nothing
library(memuse)
same = function(x, y) stopifnot(all.equal(x, y))
n <- 9000000
x <- mu(n)
same(swap.prefix(x), mu(n, prefix="SI"))
same(swap.names(x), mu(n, names="long"))
same(mu.size(swap.unit(x, "kib")), mu.size(x)*1024)
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