import { ErrorUnion, OkUnion } from '../outputs';
/**
 * Adds a custom server language pack to the list of installed language packs in current
 * localization target. Can be called before authorization
 * @param {Object} params
 * @param {string} [params.languagePackId] - Identifier of a language pack to be
 * added; may be different from a name that is used in an "https://t.me/setlanguage/"
 * link
 * @param {Object} state
 * @returns {OkUnion | ErrorUnion}
 */
export declare type AddCustomServerLanguagePackMethod = <ResponseT = OkUnion>(params: AddCustomServerLanguagePackParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface AddCustomServerLanguagePackParams {
    /**
     * Identifier of a language pack to be added; may be different from a name that is used
     * in an "https://t.me/setlanguage/" link
     */
    languagePackId?: string;
}