Is the args skippable in some language

[TacticalTwerking]

Hi there! thanks for making this awesome lib, I'm currently working on a new project and using the old language resource files, to do so, I will need to edit those files to make them compatible with Slang. so here's my question.

Let's say I need to support two languages like below:

en.i18n.json
{ "greetings" : "hello" }

es.i18n.json
{ "greetings" : "hola $amigo" }

as you can see, the es part contains the same key but it has an argument that needs to be filled in, when I run the slang command, it generates both *.g.dart files, but gets an error in the strings_es.g.dart file, it says:
Class 'TranslationsES' can't define field 'greetings' and have method 'Translations. greetings' with the same name.

any help thanks