export declare const getOverlappingDaysInIntervals: import("./types.ts").FPFn2<
  number,
  import("../fp.ts").Interval<
    import("../fp.ts").DateArg<Date>,
    import("../fp.ts").DateArg<Date>
  >,
  import("../fp.ts").Interval<
    import("../fp.ts").DateArg<Date>,
    import("../fp.ts").DateArg<Date>
  >
>;