/**@format */
/// <reference types="webpack-env" />
/** Default language define of i18n cache */
export declare const DEFAULT_LANGUAGE = "DEFAULT_LANGUAGE";
/**
 * Package Module Name
 * This is a id of package module
 * core: shell-core
 * react: shell-react
 * ui: shell-ui
 */
export type i18nModuleName = "core" | "react" | "ui";
/**
 * Set international package to module cache
 *
 * @param lang the language name
 * @param packageName the package id of the package path
 * @param module the module require interface
 */
export declare function setI18nModuleCache(lang: string, packageName: i18nModuleName, module: __WebpackModuleApi.RequireContext): void;
/**
 * Get international module require interface by language and package name from module cache
 *
 * @param lang the language name
 * @param packageName the package id of the package path
 * @returns return the module require function
 */
export declare function getI18nModuleCache(lang: string, packageName: i18nModuleName): __WebpackModuleApi.RequireContext | undefined;
/**
 * Get i18n text from specific file.
 *
 * @param packageName the package id of the root folder under packages
 * @param file the i18n file path (relative path of the root folder)
 * @param key the i18n key
 * @param params string params for format needs
 * @param fallString a string to use when the specific i18n value is not found
 * @returns return a formatted i18n value string.
 */
export declare function getTextFromFile(packageName: i18nModuleName, file: string, key: string, params?: (string | number)[] | string, fallString?: string): string;