export declare type WidthsMap<TItemId> = Map<TItemId, number>;
export declare type SetItemRef<TItemId, TItemElement> = (id: TItemId) => (element: TItemElement | null) => void;
export declare type ItemIdGetter<TItem, TItemId> = (item: TItem) => TItemId;
export declare type ShouldKeepItemVisible<TItem> = (item: TItem) => boolean;
export interface CollapsibleState<TItem, TItemId, TContainerElement, TInnerContainerElement, TMoreButtonElement, TItemElement> {
    visibleItems: TItem[];
    hiddenItems: TItem[];
    containerRefCallback: (element: TContainerElement | null) => void;
    moreButtonRef: React.Ref<TMoreButtonElement>;
    innerContainerRefCallback: (element: TInnerContainerElement | null) => void;
    itemsRefs: React.MutableRefObject<Map<TItemId, TItemElement>>;
    setItemRef: SetItemRef<TItemId, TItemElement>;
}
export declare enum CollapseDirection {
    StartFirst = "start-first",
    EndFirst = "end-first"
}