/**
 * Calculates swipe velocity and direction based on touch start and end positions.
 *
 * @param startX - The initial X coordinate of the touch event.
 * @param endX - The final X coordinate of the touch event.
 * @param startTime - The timestamp when the touch started.
 * @param endTime - The timestamp when the touch ended.
 *
 * @returns An object containing:
 * - deltaX: The distance swiped in the X direction.
 * - velocity: The calculated swipe velocity (pixels per millisecond).
 */
export declare function getSwipeInfo(startX: number, endX: number, startTime: number, endTime: number): {
    deltaX: number;
    velocity: number;
};