import type { PiralPlugin } from 'piral-core';
import type { PiletLocaleApi, Localizable, AnyLocalizationMessages, TranslationFallback } from './types';
export interface RetrieveCurrentLanguage {
    /**
     * A function to identify the current language.
     */
    (languages: Array<string>, defaultLanguage: string, fallbackLanguage?: string): string;
}
export interface LocaleConfig {
    /**
     * Sets the default (global) localization messages.
     * @default {}
     */
    messages?: AnyLocalizationMessages;
    /**
     * Sets the default language to use.
     */
    language?: string | RetrieveCurrentLanguage;
    /**
     * Sets the optional fallback to use.
     */
    fallback?: TranslationFallback;
}
/**
 * Sets up a new localizer by using the given config.
 * @param config The configuration for the new localizer.
 */
export declare function setupLocalizer(config?: LocaleConfig): Localizable;
/**
 * Creates new Pilet API extensions for localization.
 * @param localizer The specific localizer to be used, if any.
 */
export declare function createLocaleApi(localizer?: Localizable): PiralPlugin<PiletLocaleApi>;