import { type DateLib } from "../classes/DateLib.js";
/**
 * Formats the month for the dropdown option label.
 *
 * @defaultValue The localized full month name.
 * @param month The date representing the month.
 * @param dateLib The date library to use for formatting. Defaults to
 *   `defaultDateLib`.
 * @returns The formatted month name as a string.
 * @group Formatters
 * @see https://daypicker.dev/docs/translation#custom-formatters
 */
export declare function formatMonthDropdown(month: Date, dateLib?: DateLib): string;
