Key creates a message Reference for a message where the given id is used for message lookup and the fallback is returned when no matches are found.

NewPrinter returns a Printer that formats messages tailored to language t.

SetString calls SetString on the default Catalog.

DefaultCatalog is used by SetString.

A Catalog holds translations for messages for supported languages.

A Printer implements language-specific formatted I/O analogous to the fmt package.

A Reference is a string or a message reference.