/** @module event */ /** */
/**
 * Returns relative distance beteen two events.
 *
 * @param event0 - The first event.
 * @param event1 - The second event.
 */
export declare function relativeDistance(event0: {
    pageX: number;
    pageY: number;
}, event1: {
    pageX: number;
    pageY: number;
}): {
    x: number;
    y: number;
};