I want to add a new language to @uppy/locales

I want to add a new language to @uppy/locales, but i don’t know what is the ideal way to name the file. The language is Kurdish “ku” but it is not just for one country, it is used in Iraq, Iran, Turkey and Syria. So i dont know what is the best way to name the file, i was thinking to name it ku.ts or ku_KU.ts since it’s original location is Kurdistan