export type CatI18nTranslationFn = (key: string, params?: unknown) => string;
/**
 * A registry for lightweight internationalization (i18n) in applications using
 * the Catalyst design system. The registry stores translations and provides
 * methods for setting the locale, registering translations, and retrieving
 * translated messages.
 */
export declare class CatI18nRegistry {
    private static instance;
    private readonly id;
    private readonly i18n;
    private _locale?;
    private _translator?;
    private constructor();
    static getInstance(): CatI18nRegistry;
    getLocale(): string;
    setLocale(locale: string, silent?: boolean): void;
    set(i18n: {
        [key: string]: string;
    } | CatI18nTranslationFn, silent?: boolean): void;
    clear(silent?: boolean): void;
    t(key: string, params?: {
        [key: string]: unknown;
    }): string;
    private buildEvent;
}
export declare const catI18nRegistry: CatI18nRegistry;