sci-CRAN/httr
>=sci-CRAN/assertthat-0.2.0
sci-CRAN/igraph

r_suggests_covr?
      ( sci-CRAN/covr )

r_suggests_devtools?
      ( sci-CRAN/devtools )

r_suggests_knitr?
      ( sci-CRAN/knitr )

r_suggests_mockery?
      ( sci-CRAN/mockery )

r_suggests_mockr?
      ( sci-CRAN/mockr )

r_suggests_rmarkdown?
      ( sci-CRAN/rmarkdown )

r_suggests_roxygen2?
      ( sci-CRAN/roxygen2 )

r_suggests_spelling?
      ( sci-CRAN/spelling )

r_suggests_testthat?
      ( >=sci-CRAN/testthat-2.1.0 )

r_suggests_testthis?
      ( sci-CRAN/testthis )

r_suggests_withr?
      ( sci-CRAN/withr )

dev-lang/R:=