'How do I properly use the props = TRUE arguement in the rast() function in terra?

I'm interested in using the props argument when using the rast() function to load raster files into r.

"props: logical. If TRUE the properties (categories and color-table) are kept"

However, I keep getting the following error message:

f <- system.file("ex/elev.tif", package="terra")
r <- rast(f, props = TRUE)
Error in .local(x, ...) : unused argument (props = TRUE)

Does this occur when there are no properties associated with the raster? Or am I doing something wrong?

r terra

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