import { type RefObject } from "react";
export interface PortalPosition {
    top: number;
    left: number;
    width: number;
    /** true when the panel was flipped above the anchor (no room below). */
    flip: boolean;
}
export declare function usePortalPosition(anchorRef: RefObject<HTMLElement | null>, panelRef: RefObject<HTMLElement | null>, open: boolean, disablePortal: boolean, deps?: ReadonlyArray<unknown>): PortalPosition;