/**
 * @license
 * Copyright 2023 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { MachineResult } from "./traversal/result.js";
import type { TraversalResult } from "@breadboard-ai/types";
export declare const replacer: (key: string, value: unknown) => unknown;
export declare const reviver: (key: string, value: unknown & {
    $type?: string;
    value: Iterable<readonly [string, unknown]>;
}) => {
    $type?: string;
    value: Iterable<readonly [string, unknown]>;
} | Map<string, unknown>;
export declare const saveRunnerState: (type: string, result: TraversalResult) => string;
export declare const loadRunnerState: (s: string) => {
    state: MachineResult;
    type: any;
};
export declare const cloneState: (result: TraversalResult) => TraversalResult;
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