export declare const dfs: <T extends {
    children?: T[] | undefined;
}>(data: T[], { visitor }: {
    visitor: (node: T, done?: () => void) => void;
}) => void;
export declare const bfs: <T extends {
    children?: T[] | undefined;
}>(data: T[], { visitor }: {
    visitor: (node: T, done?: () => void) => void;
}) => void;