export declare const pluralize: PluralizeFunction;
export declare const singular: PluralizeFunction;
export declare const plural: PluralizeFunction;
export declare interface PluralizeOptions {
  count?: number
  inclusive?: boolean
}
declare interface PluralizeFunction {
  (word: string, options?: PluralizeOptions): string
  plural: (word: string) => string
  isPlural: (word: string) => boolean
  singular: (word: string) => string
  isSingular: (word: string) => boolean
  addPluralRule: (rule: StringOrRegExp, replacement: string) => void
  addSingularRule: (rule: StringOrRegExp, replacement: string) => void
  addUncountableRule: (word: string | RegExp) => void
  addIrregularRule: (single: string, plural: string) => void
}
declare type Rule = [RegExp, string];
declare type StringOrRegExp = string | RegExp;