How to use pfsensible.core.pfsense_rule gateway option

[sez76]

Is your feature request related to a problem? Please describe.
I I have try to use the gateway option with pfsense_rule but I have error message :
"fatal: [pfsense]: FAILED! => {"changed": false, "msg": "Gateway \"WANGW\" does not exist or does not match target rule ip protocol."}" I don't enderstant because my gateway exist.

My tast :

- name: internet access rules
  pfsensible.core.pfsense_rule:
    name: internet access
    action: pass
    interface: LAN1
    ipprotocol: inet
    protocol: tcp
    source: NET:LAN1
    # source_port: any
    destination: any
    # destination_port: any
    gateway: WANGW
    before: bottom
    state: present

any idea ?