import type { CronDayOfWeekValue } from "../types/CronDayOfWeekValue.js";
import type { StringValueParser } from "../types/StringValueParser.js";
/**
 * Parses a string into a `CronDayOfWeekValue`.
 *
 * @category Parsers
 * @example
 * ```typescript
 * parseStringDayOfWeekValue("5"); // 5
 * parseStringDayOfWeekValue("FRI"); // "FRI"
 * parseStringDayOfWeekValue("fri"); // "FRI"
 * parseStringDayOfWeekValue("8"); // undefined
 * parseStringDayOfWeekValue("IDK"); // undefined
 * ```
 * @param source string to be parsed.
 * @returns A `CronDayOfWeekValue` or `undefined` if invalid.
 */
export declare const parseStringDayOfWeekValue: StringValueParser<CronDayOfWeekValue>;