import { Node } from '../interfaces';
/**
 * Create the result of group selection operation
 * @param selectedKeys - Array of selected node keys
 * @param insertAtKey - Key of the insertion position node (right-clicked node)
 * @param children - Scene's children array
 * @returns Updated children array and new group key
 */
export declare function createGroupSelection(selectedKeys: string[], insertAtKey: string, children: Node[] | string[] | null): {
    updatedChildren: Node[] | string[] | null;
    newGroupKey: string;
} | null;