/**
 *
 *  One point of a concurrent-occupancy step function for a period of calendar items.
 *
 *  The occupancy of a period is emitted as a sequence of these points, ordered by [timestamp]: each
 *  point
 *  indicates that, starting from [timestamp], the number of overlapping (busy) calendar items
 *  becomes [occupancy].
 *  /
 */
export declare class CalendarItemOccupancy {
    /**
     *
     *  A fuzzy date-time at which the occupancy changes.
     */
    timestamp: number;
    /**
     *
     *  The number of calendar items that are concurrently busy starting from [timestamp].
     */
    occupancy: number;
    constructor(partial: Partial<CalendarItemOccupancy> & Pick<CalendarItemOccupancy, "timestamp" | "occupancy">);
    toJSON(): object;
    static fromJSON(json: any, ignoreUnknownKeys?: boolean, path?: Array<string>): CalendarItemOccupancy;
}