import type { CronMonthValue } from "../types/CronMonthValue.js";
import type { StringValueParser } from "../types/StringValueParser.js";
/**
 * Parses a string into a `CronMonthValue`.
 *
 * @category Parsers
 * @example
 * ```typescript
 * parseStringMonthValue("10"); // 10
 * parseStringMonthValue("OCT"); // "OCT"
 * parseStringMonthValue("oct"); // "OCT"
 * parseStringMonthValue("24"); // undefined
 * parseStringMonthValue("IDK"); // undefined
 * ```
 * @param source string to be parsed.
 * @returns A `CronMonthValue` or `undefined` if invalid.
 */
export declare const parseStringMonthValue: StringValueParser<CronMonthValue>;