portage-ng --merge
>>> Emerging : portage://gnome-extra/gnome-user-docs-49.9:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://gnome-extra/gnome-user-docs-49.9
│ └─ file ─┤ 15.52 Mb gnome-user-docs-49.9.tar.xz
└─step 2─┤ install portage://gnome-extra/gnome-user-docs-49.9
│ └─ conf ─┤ USE = "-test"
└─step 3─┤ run portage://gnome-extra/gnome-user-docs-49.9
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
15.52 Mb to be downloaded.