import type { ReactNode } from "react";
export declare function flattenFragments(children: ReactNode): FlatArray<string | number | Iterable<ReactNode>, 0 | 1 | 2 | 3 | 4 | 5 | 8 | 6 | 16 | 20 | 10 | -1 | 7 | 9 | 11 | 12 | 13 | 14 | 15 | 17 | 18 | 19>[] | undefined;