import type { Maybe } from "@vangware/types";
import type { CronSpecificDayOfWeek } from "../types/CronSpecificDayOfWeek.js";
/**
 * Parses a string into a `CronSpecificDayOfWeek`.
 *
 * @category Parsers
 * @example
 * ```typescript
 * parseStringSpecificDayOfWeek("1#5"); // { day: 1, week: 5 }
 * parseStringSpecificDayOfWeek("INVALID"); // undefined
 * ```
 * @param source string to be parsed.
 * @returns A `CronSpecificDayOfWeek` or `undefined` if invalid.
 */
export declare const parseStringSpecificDayOfWeek: (
	source: string,
) => Maybe<CronSpecificDayOfWeek>;