import { DeepReadonly } from "./types.js";
export declare const postorderTraversal: <T>(root: DeepReadonly<T>, childrenAccessor: (node: DeepReadonly<T>) => DeepReadonly<T[]> | undefined, callback: (node: DeepReadonly<T>, idx: number, array: DeepReadonly<T[]>) => void) => void;
export declare const postorderTraversalSearch: <T, R = T>(root: DeepReadonly<T>, childrenAccessor: (node: DeepReadonly<T>) => DeepReadonly<T[]> | undefined, callback: (node: DeepReadonly<T>) => boolean) => R | null;
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