import { ItemContentProps } from '../../helperComponents';
import { AccordionItem, AnyType, BaseItem, FlattenItem, FocusFlattenItem, GroupItem, GroupSelectItem, Item, ItemId, NextListItem } from './types';
export declare function isBaseItem<ReturnType = BaseItem>(item: AnyType): item is ReturnType;
export declare function isAccordionItem<ReturnType = AccordionItem>(item: AnyType): item is ReturnType;
export declare function isNextListItem<ReturnType = NextListItem>(item: AnyType): item is ReturnType;
export declare function isGroupItem<ReturnType = GroupItem>(item: AnyType): item is ReturnType;
export declare function isGroupSelectItem<ReturnType = GroupSelectItem>(item: AnyType): item is ReturnType;
export declare function isContentItem(item: AnyType): item is ItemContentProps;
export declare const isBaseItemProps: typeof isBaseItem;
export declare const isAccordionItemProps: typeof isAccordionItem;
export declare const isNextListItemProps: typeof isNextListItem;
export declare const isGroupItemProps: typeof isGroupItem;
type KindFlattenItemsProps = {
    items: Item[];
    prefix?: ItemId;
    parentId?: ItemId;
};
export declare function kindFlattenItems({ items, prefix, parentId }: KindFlattenItemsProps): {
    focusCloseChildIds: ItemId[];
    allChildIds: ItemId[];
    flattenItems: Record<string, FlattenItem>;
    focusFlattenItems: Record<string, FocusFlattenItem>;
};
type ExtractActiveItemsProps = {
    focusFlattenItems: Record<string, FocusFlattenItem>;
    focusCloseChildIds: ItemId[];
    openCollapseItems: ItemId[];
    isSelectionMultiple?: boolean;
};
type ExtractActiveItemsReturnType = {
    ids: ItemId[];
    expandedIds: ItemId[];
};
export declare function extractActiveItems({ focusFlattenItems, focusCloseChildIds, openCollapseItems, isSelectionMultiple, }: ExtractActiveItemsProps): ExtractActiveItemsReturnType;
export {};