import { Key } from 'react-aria-components/Breadcrumbs';
import { ProcessedDynamicContent, ProcessedFlatDynamicContent, SectionWithChildren, SelectableItem } from './SelectList.types.js';
/**
 * Type guard to check if an object has a children array property,
 * indicating it's a section containing selectable items.
 * @param obj - Object to check
 * @returns True if object is a section with children array
 */
export declare function hasSectionChildren<TChild extends SelectableItem>(obj: unknown): obj is SectionWithChildren<TChild>;
/**
 * Type guard to check if items array contains nested sections or flat items
 * by inspecting the first item in the iterable.
 * Uses iterator directly to avoid converting entire iterable to array.
 */
export declare function isNestedStructure<TChild extends SelectableItem>(items: Iterable<unknown>): items is Iterable<SectionWithChildren<TChild>>;
/**
 * Processes a flat array of items, partitioning them into selected
 * and unselected groups based on the provided selected keys.
 * @param items - Flat iterable of items to process
 * @param selectedKeys - Set of currently selected item keys
 * @returns Object with selectedItems and remainingItems arrays
 */
export declare function processSelectedItemsForFlatDynamicItems<TItem extends SelectableItem>(items: Iterable<TItem>, selectedKeys: Set<Key>): ProcessedFlatDynamicContent<TItem>;
/**
 * Extracts all selectable child items from a nested section structure,
 * flattening the hierarchy into a single array.
 * @param items - Iterable of sections containing child items
 * @returns Object with flat array of all child items
 */
export declare function extractAllSelectableItems<TSection extends SectionWithChildren<TChild>, TChild extends SelectableItem>(items: Iterable<TSection>): {
    allItems: TChild[];
};
/**
 * Processes a nested structure (sections with children), extracting selected
 * items and creating modified sections with selected items removed.
 * @param items - Iterable of sections containing child items
 * @param selectedKeys - Set of currently selected item keys
 * @returns Object with selectedItems array and modified sections array
 */
export declare function processSelectedItemsForNestedDynamicItems<TSection extends SectionWithChildren<TChild>, TChild extends SelectableItem & {
    label: string;
}>(items: Iterable<TSection>, selectedKeys: Set<Key>): ProcessedDynamicContent<TChild | TSection>;