$ gnome-shell --version
GNOME Shell 3.28.4

$ cd ~/.local/share/gnome-shell/extensions/gnome-shell-screenshot@ttll.de
$ cat metadata.json 
{
  "_generated": "Generated by SweetTooth, do not edit",
  "description": "Conveniently create, copy, store and upload screenshots",
  "gettext-domain": "gnome-shell-screenshot",
  "git-version": "v43-rc1",
  "name": "Screenshot Tool",
  "settings-schema": "org.gnome.shell.extensions.screenshot",
  "shell-version": [
    "3.28",
    "3.30",
    "3.34",
    "3.32",
    "3.36"
  ],
  "url": "https://github.com/OttoAllmendinger/gnome-shell-screenshot/",
  "uuid": "gnome-shell-screenshot@ttll.de",
  "version": 43
}