~$ systemd-inhibit
     Who: xfce4-power-manager (UID 1000/loke, PID 1532/xfce4-power-man)
    What: handle-power-key:handle-suspend-key:handle-hibernate-key:handle-lid-switch
     Why: xfce4-power-manager handles these events
    Mode: block

     Who: NetworkManager (UID 0/root, PID 550/NetworkManager)
    What: sleep
     Why: NetworkManager needs to turn off networks
    Mode: delay