List all packages in the 'certedata' universe
certedata_packages(only_installed = TRUE, include_self = TRUE)
certedata_packages()
#> [1] "certedb" "certegis" "certemail" "certeplot2"
#> [5] "certeprojects" "certestats" "certestyle" "certetoolbox"
#> [9] "certedata"