Else Use List. You birey't really argue "oh but I KNOW that I will always pass in a List here", then you should take a List hamiş an IList, else you are breaking Liskov substitution principle: "if S is a subtype of T, then objects of type T may be https://messiahvhowd.blgwiki.com/787259/the_ultimate_guide_to_c_ilist_nasıl_kullanılır