import { ViewerStrings } from './types.js';
/** Register (or override) the strings for a locale, e.g. `registerStrings('fr', fr)`. */
export declare function registerStrings(locale: string, strings: ViewerStrings): void;
/** Resolve a locale to its strings, falling back to the base language, then English. */
export declare function resolveStrings(locale: string): ViewerStrings;
/** Replace `{0}`, `{1}`, … placeholders in a template string. */
export declare function formatString(template: string, ...args: Array<string | number>): string;