import { type LocaleFieldsData, type RelativeTimeLocaleData } from "@formatjs/ecma402-abstract";
export default class RelativeTimeFormat {
	constructor(locales?: string | string[], options?: Intl.RelativeTimeFormatOptions);
	format(value: number, unit: Intl.RelativeTimeFormatUnit): string;
	formatToParts(value: number, unit: Intl.RelativeTimeFormatUnit): Intl.RelativeTimeFormatPart[];
	resolvedOptions(): Intl.ResolvedRelativeTimeFormatOptions;
	static supportedLocalesOf(locales: string | string[], options?: Pick<Intl.RelativeTimeFormatOptions, "localeMatcher">): string[];
	static __addLocaleData(...data: RelativeTimeLocaleData[]): void;
	static localeData: Record<string, LocaleFieldsData>;
	private static availableLocales;
	private static __defaultLocale;
	private static getDefaultLocale;
	private static relevantExtensionKeys;
	static polyfilled: boolean;
}