export declare type Type<T> = new (...args: any[]) => T;
export interface DateTimeOptions {
    weekday?: string;
    era?: string;
    year?: string;
    month?: string;
    day?: string;
    hour?: string;
    minute?: string;
    second?: string;
    timeZoneName?: string;
    hour12?: boolean;
}
export interface DigitsOptions {
    minimumIntegerDigits?: number;
    minimumFractionDigits?: number;
    maximumFractionDigits?: number;
    minimumSignificantDigits?: number;
    maximumSignificantDigits?: number;
    useGrouping?: boolean;
}
export interface RelativeTimeOptions {
    numeric?: string;
    style?: string;
}
export declare type Unit = 'year' | 'quarter' | 'month' | 'week' | 'day' | 'hour' | 'minute' | 'second';
export interface Locale {
    /**
     * ISO 639 two-letter or three-letter code.
     */
    languageCode: string;
    /**
     * ISO 3166 two-letter, uppercase code.
     */
    countryCode?: string;
    /**
     * ISO 15924 four-letter script code.
     */
    scriptCode?: string;
}
export interface DefaultLocale extends Locale {
    numberingSystem?: string;
    calendar?: string;
}
export interface Language {
    /**
     * ISO 639 two-letter or three-letter code.
     */
    code: string;
    /**
     * 'ltr' or 'rtl'.
     */
    dir: string;
}
export interface Decimal {
    minusSign: string;
    decimalSeparator: string;
    thousandSeparator: string;
}
export interface Schema extends DefaultLocale {
    currency?: string;
    timezone?: string;
    text?: string;
}
export interface Log {
    name: string;
    message: string;
}
export declare enum StorageStrategy {
    Session = 0,
    Local = 1,
    Cookie = 2,
    Disabled = 3
}
export declare enum ProviderType {
    Fallback = 0,
    Static = 1,
    WebAPI = 2
}
export declare enum ISOCode {
    Language = "languageCode",
    Country = "countryCode",
    Script = "scriptCode"
}
export declare enum ExtraCode {
    NumberingSystem = "numberingSystem",
    Calendar = "calendar",
    Currency = "currency",
    Timezone = "timezone"
}
export declare enum LogLevel {
    Error = "error",
    Warn = "warn",
    Info = "info",
    Log = "log",
    Off = "off"
}
export declare enum NumberFormatStyle {
    Decimal = 0,
    Percent = 1,
    Currency = 2
}
export declare const NUMBER_FORMAT_REGEXP: RegExp;
export declare const ISO8601_DATE_REGEX: RegExp;
export declare const FORMAT_ALIASES: {
    [format: string]: DateTimeOptions;
};
export declare const LOG_MESSAGES: {
    [message: string]: string;
};