import type { Locale } from "../classes/DateLib.js";
/**
 * Format the month number for the dropdown option label.
 *
 * @defaultValue The localized month name
 * @group Formatters
 * @see https://daypicker.dev/docs/translation#custom-formatters
 */
export declare function formatMonthDropdown(
/** The month number to format. */
monthNumber: number, 
/** The locale to use for formatting. */
locale: Locale): string;