public static EcmaValue Collator([This] EcmaValue thisValue, EcmaValue locales, EcmaValue options)
{
Collator collator = thisValue.GetUnderlyingObject <Collator>();
ICollection <string> requestedLocales = IntlUtility.CanonicalizeLocaleList(locales);
collator.Init(requestedLocales, new CollatorOptions(options));
return(thisValue);
}