import { type Hash } from 'util/index.js';
import type { Action, Graph, Link } from './types.js';
export declare const memoizeResolver: (graph: Graph<any, any>, hash: Hash) => string;
/** Returns the set of predecessors of `link` (not including `link`) */
export declare const getPredecessors: <A extends Action, C>(graph: Graph<A, C>, link: Link<A, C>) => Array<Link<A, C>>;
export declare const getPredecessorHashes: (graph: Graph<any, any>, hash: Hash) => Hash[];
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