A self-contained collection of [Translation] resources. [TranslationDomain] is a self-contained collection of [Translation] resources. Translations can be added to or removed from it. If you're working with the main translation domain, it is more convenient to use the wrap methods on [TranslationServer]. Adds a translation. Removes all translations. Returns the [Translation] instance that best matches [param locale]. Returns [code]null[/code] if there are no matches. Removes the given translation. Returns the current locale's translation for the given message and context. Returns the current locale's translation for the given message, plural message and context. The number [param n] is the number or quantity of the plural object. It will be used to guide the translation system to fetch the correct plural form for the selected language.