import { PackageIntl } from "@open-pioneer/runtime";
/** Options for `createIntl`. */
export interface I18nOptions {
    /**
     * The locale for i18n messages and formatting.
     *
     * @default "en"
     */
    locale?: string;
    /**
     * The locale for embedded default messages (e.g. `defaultMessage` property in `intl.formatMessage(...)`).
     * It is usually not necessary to specify this option.
     *
     * See also https://formatjs.io/docs/intl#message-descriptor
     *
     * @default "en"
     */
    defaultMessageLocale?: string;
    /**
     * I18n messages as (messageId, message) entries.
     *
     * @default {}
     */
    messages?: Record<string, string>;
}
/**
 * Creates an `intl` instance that can be used for testing.
 *
 * Other than the default implementation provided by `@formatjs/intl`, this
 * `intl` object will not warn if a message is not defined.
 * Instead, it will simply render the fallback message.
 * This behavior makes testing easier.
 *
 * Note that messages can still be defined by using the `messages` parameter.
 */
export declare function createIntl(options?: I18nOptions): PackageIntl;