CRAN submission: see 0.8.4 #557

Job	Run time
R-CMD-check / macOS-latest (release)	11m 54s
R-CMD-check / windows-latest (devel)	12m 0s
R-CMD-check / windows-latest (release)	12m 7s
R-CMD-check / windows-latest (oldrel)	12m 4s
R-CMD-check / ubuntu-latest (devel)	15m 28s
R-CMD-check / ubuntu-latest (release)	12m 59s
R-CMD-check / ubuntu-latest (oldrel)	13m 37s
R-CMD-check / ubuntu-latest (oldrel-2)	12m 43s
R-CMD-check / ubuntu-latest (oldrel-3)	2m 48s
R-CMD-check / ubuntu-latest (3.6)	2m 33s
	1h 48m 13s

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