Description:
When attempting to set IPv4 configuration for a non-existent interface using the appliance_networking_interfaces_ipv4 module, the module incorrectly returns:

• "msg": "missing required arguments: mode"
• "failed": false

This behavior occurs even when the mode argument is provided. According to the module logic, it should return "failed": true with the message "The interface is unknown."

Expected Result:
The module should return:

{ "failed": true, "msg": "The interface is unknown." }

Actual Result:
The module returns:

{ "changed": false, "msg": "missing required arguments: mode" }