/**
 * Determines whether an event is a touch event.
 * @param event
 */
export declare function isTouchEvent(event: MouseEvent | TouchEvent): event is TouchEvent;
/**
 * Normalizes a pointer event.
 * @param e
 */
export declare function normalizePointerEvent(e: MouseEvent | TouchEvent): {
    clientX: number;
    clientY: number;
    pageX: number;
    pageY: number;
    isTouch: boolean;
};