import localeDe from "@angular/common/locales/de";
import localeEn from "@angular/common/locales/en-GB";
export declare enum FormatWidth {
    Short = 0,
    Medium = 1,
    Long = 2,
    Full = 3
}
export { localeDe, localeEn };
export declare enum NgLocaleDataIndex {
    LocaleId = 0,
    DayPeriodsFormat = 1,
    DayPeriodsStandalone = 2,
    DaysFormat = 3,
    DaysStandalone = 4,
    MonthsFormat = 5,
    MonthsStandalone = 6,
    Eras = 7,
    FirstDayOfWeek = 8,
    WeekendRange = 9,
    DateFormat = 10,
    TimeFormat = 11,
    DateTimeFormat = 12,
    NumberSymbols = 13,
    NumberFormats = 14,
    CurrencyCode = 15,
    CurrencySymbol = 16,
    CurrencyName = 17,
    Currencies = 18,
    Directionality = 19,
    PluralCase = 20,
    ExtraData = 21,
    DfnsLocale = 22
}
export declare function getNgLocaleId(locale: string): string;
export declare function registerLocale(data: unknown[], c8yLocaleId: string, extraData?: unknown, localeId?: string): Promise<void>;
export declare function registerDefaultLocales(): Promise<void>;
export declare function getNgLocale(localeId: string): any;
export declare function localizedTimeFormat(localeId?: string, formatWidth?: FormatWidth | number): string;
export declare function localizedDateFormat(localeId?: string, formatWidth?: FormatWidth | number): string;
export declare function localizedDateTimeFormat(localeId?: string, formatWidth?: FormatWidth | number): string;
export declare function parseDate(date: string | number | Date, format: string): Date | undefined;
export declare function isValidDate(date?: Date): boolean;