/** * Escapes a string for use in a regular expression. */ export declare function escapeRegExp(str: string): string; type CastArrayResult<T> = T extends undefined | null ? never[] : T extends unknown[] ? T : T[]; /** * Casts a value to an array if it's not one. */ export declare function castArray<T = never[]>(value?: T): CastArrayResult<T>; export {};