@formatjs/intl-pluralrules

constructor(locales?: string | string[], options?: Intl.PluralRulesOptions);

static availableLocales: Set<string>;

static localeData: Record<string, PluralRulesData>;

static polyfilled: boolean;

static relevantExtensionKeys: never[];

static getDefaultLocale: () => string;

resolvedOptions: () => any;

select: (val: number) => LDMLPluralRule;

static supportedLocalesOf: (
    locales?: string | string[],
    options?: Pick<Intl.PluralRulesOptions, 'localeMatcher'>
) => string[];

toString: () => string;

initializedPluralRules: boolean;

locale: string;

type: 'cardinal' | 'ordinal';