R Under development (unstable) (2023-11-02 r85465 ucrt) -- "Unsuffered Consequences"
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> # graphics engine changed in these versions, and so snapshots generated on
> # previous R version won't work
> if (require("testthat") && require("vdiffr") && getRversion() > "4.1.0" && getRversion() < "4.4.0") {
+   library(testthat)
+   library(see)
+ 
+   test_check("see")
+ }
Loading required package: testthat
Loading required package: vdiffr
> 
> proc.time()
   user  system elapsed 
   0.45    0.09    0.54