In "Godot Engine: how to shield some useless warnings" in one article, describes how to shield various warnings, including "UNUSED_ARGUMENT" warning, but this approach is for all GDScript script, if we just want to ignore certain "UNUSED_ARGUMENT" specific warning function, there are easier ways:
directly to your argument with an underscore "_" on it.
example:
extends Node
func _process(delta):
pass
In fact, the following has been suggested that specific practices, really intimate! (New version add to the mix? I did not notice before)
to the parameter deltaplus a "_" into _deltawarning disappears
extends Node
func _process(_delta):
pass
