import type { CachePayload } from "./types.js";
/** Create a detached, JSON-store-compatible snapshot of a valid payload. */
export declare function cloneCachePayload(value: CachePayload): CachePayload;
/**
 * Serialize using the origin-compatible payload shape.
 *
 * Dates become canonical ISO strings for old readers and are rehydrated by new
 * readers through a bounded semantic-path sidecar. Both node-map projections
 * are emitted because the original distributed-store adapter consumed the
 * top-level form while the original API adapter consumed the nested form.
 */
export declare function serializeCachePayload(value: CachePayload): string;
/** Validate untrusted store data and return a detached snapshot on success. */
export declare function parseCachePayload(value: unknown): CachePayload | undefined;
/** Reject oversized or malformed JSON before constructing an untrusted object graph. */
export declare function parseSerializedCachePayload(value: string): CachePayload | undefined;
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