Using this module to list VLANs on a Netbox 4.1 instance will break with error:
json: cannot unmarshal object into Go struct field NestedL2VPN.results.l2vpn_termination.l2vpn.type of type string
if the vlan has l2vpn termination assigned to it.
This is because the connected l2vpn attribute: type has changed from a string to an object.