/**
 * @public
 */
export type FastTag = (string | number)[];
export type FastTagPair = {
    type: FastTag;
    repl: FastTag;
};
export type LanguageAliasMap = {
    [x: string]: FastTagPair[];
};
export type TerritoryAliasMap = {
    [x: string]: string[];
};
/**
 * Helper for the language tag parser to fix overlong region fields that may
 * or may not be variants.
 *
 * @internal
 */
export declare const replaceRegion: (region: string) => string | undefined;
/**
 * Substitute territory subtag aliases, if any.
 *
 * @public
 */
export declare const substituteRegionAliases: (dst: FastTag) => void;
export declare const stringToObject: (raw: string, d1: string, d2: string) => {
    [x: string]: string;
};