import { CSSProperties, Ref } from 'vue';
import { AnchorPosition } from './useAnchorPositionPolyfill.js';
import { OpenDirection } from './useOpenDirection.js';
export type UseStickyOptions = {
    popoverRef: Ref<HTMLElement | null>;
    popoverWrapperRef: Ref<HTMLElement | null>;
    popoverPosition: Ref<AnchorPosition | OpenDirection>;
    isVisible: Ref<boolean>;
    sticky: Ref<boolean>;
};
export declare function useSticky(options: UseStickyOptions): {
    stickyStyles: Ref<CSSProperties | undefined, CSSProperties | undefined>;
    scrolledOut: Ref<OpenDirection | undefined, OpenDirection | undefined>;
    isSticky: Ref<boolean, boolean>;
    checkVisibilityOnScroll: () => void;
};