Nothing
suppressPackageStartupMessages(library(xdvir))
readDVI(system.file("DVI", "test-pdftex.dvi", package="xdvir"))
readDVI(system.file("DVI", "test-luatex.dvi", package="xdvir"))
readDVI(system.file("DVI", "test-xetex.xdv", package="xdvir"))
readDVI(system.file("DVI", "test-uptex.dvi", package="xdvir"))
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