clipr, covr, gert, gh, knitr, openssl, purrr, rmarkdown,
testthat (>= 3.0.0), usethis (>= 2.0.0), utils, vcr, withr
clipr, covr, gert, knitr, openssl, purrr, rmarkdown, testthat
(>= 3.0.0), usethis (>= 2.0.0), utils, vcr, withr