Get/ Set ipv4.ignore-auto-dns

[benfi5]

Hi, I am wondering how I can get or set the property ipv4.ignore-auto-dns using this package.

It is described here: https://developer-old.gnome.org/NetworkManager/unstable/nm-settings-dbus.html (see ignore-auto-dns)

I tried to read it out using the connection settings:

conActive, err := device.GetPropertyActiveConnection()
con, err := conActive.GetPropertyConnection()
conSettings, err := con.GetSettings()
ignoreAutoDns := conSettings["ipv4"]["ignore-auto-dns"]

This returns nil, as the key does not exist in the map:

map[802-3-ethernet:map[auto-negotiate:false mac-address-blacklist:[] s390-options:map[]] connection:map[id:default-dhcp interface-name:LAN3-Ethernet permissions:[] timestamp:1666698732 type:802-3-ethernet uuid:d30238a5-488d-3cbd-ac5f-7de785abc023] ipv4:map[address-data:[] addresses:[] dns:[] dns-search:[] method:auto route-data:[] routes:[]] ipv6:map[address-data:[] addresses:[] dns:[] dns-search:[] method:ignore route-data:[] routes:[]] proxy:map[]]

nm version: 1.30.6 (debian bullseye)

What is the right way to set or get the property?