Run
nmclias a NetworkManager secret agent or polkit agent. This subcommand can also be called withnmcli a. More information: https://networkmanager.pages.freedesktop.org/NetworkManager/NetworkManager/nmcli.html.
nmcli as a secret agent and listen for secret requests:nmcli agent secret
nmcli as a polkit agent and listen for authorization requests:nmcli agent polkit
nmcli as a secret agent and a polkit agent:nmcli agent all