R Under development (unstable) (2025-05-01 r88184 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library("R.cache")
R.cache v0.17.0 successfully loaded. See ?R.cache for help.
> 
> obj <- R.oo::Object()
> obj$value <- 42L
> print(getChecksum(obj))
[1] "ed8c3b9742955a46e9c7d39e6a725b51"
> 
> proc.time()
   user  system elapsed 
   0.17    0.06    0.21