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import type { LocalizedOptions, WeekOptions } from "./types.js";
/**
 * The {@link differenceInCalendarWeeks} function options.
 */
export interface DifferenceInCalendarWeeksOptions
  extends LocalizedOptions<"options">,
    WeekOptions {}
/**
 * @name differenceInCalendarWeeks
 * @category Week Helpers
 * @summary Get the number of calendar weeks between the given dates.
 *
 * @description
 * Get the number of calendar weeks between the given dates.
 *
 * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
 *
 * @param dateLeft - The later date
 * @param dateRight - The earlier date
 * @param options - An object with options.
 *
 * @returns The number of calendar weeks
 *
 * @example
 * // How many calendar weeks are between 5 July 2014 and 20 July 2014?
 * const result = differenceInCalendarWeeks(
 *   new Date(2014, 6, 20),
 *   new Date(2014, 6, 5)
 * )
 * //=> 3
 *
 * @example
 * // If the week starts on Monday,
 * // how many calendar weeks are between 5 July 2014 and 20 July 2014?
 * const result = differenceInCalendarWeeks(
 *   new Date(2014, 6, 20),
 *   new Date(2014, 6, 5),
 *   { weekStartsOn: 1 }
 * )
 * //=> 2
 */
export declare function differenceInCalendarWeeks<DateType extends Date>(
  dateLeft: DateType | number | string,
  dateRight: DateType | number | string,
  options?: DifferenceInCalendarWeeksOptions,
): number;