/**
 * @module i18n/builtins
 * Registers the namespaces that ship with Relaxjs.
 *
 * English is imported directly so it is always present in the bundle and can act
 * as the fallback for every other locale. The remaining locales are loaded the
 * first time they are selected.
 */
/**
 * Fills the catalogue with `r-common`, `r-pipes`, and `r-validation`.
 *
 * Called once when the i18n module loads. An application may replace any of these
 * afterwards by registering the same locale and namespace again.
 */
export declare function registerBuiltinNamespaces(): void;