/**
 * Movement below this stays a click. A mouse shifts a pixel or two under the
 * press of the button itself, and a wheel row is a click target.
 */
export declare const DRAG_SLOP = 4;
/**
 * Let a mouse drag `ref`'s contents, on a container that already scrolls and
 * snaps for touch.
 *
 * @param ref - the scroll container
 * @param isEnabled - skip while the wheel is hidden; a hidden panel keeps its
 *   layout box, so its listeners would otherwise still be live
 */
export declare function usePointerDragScroll(ref: React.RefObject<HTMLElement | null>, isEnabled?: boolean): void;
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