import type { DataResponseMetadata, ResponseCookie } from "./schemas/data.schema.js";
export declare function normalizeDataResponseMetadata(value: {
    headers?: unknown;
    cookies?: unknown;
}, hookName?: "getServerData" | "getStaticData"): DataResponseMetadata;
export declare function mergeDataResponseMetadata(metadata: readonly DataResponseMetadata[]): DataResponseMetadata;
/**
 * Carry validated response metadata through an internal error path without
 * placing cookie values in enumerable error context, logs, or telemetry.
 */
export declare function attachDataResponseMetadata<T extends Error>(carrier: T, metadata: DataResponseMetadata): T;
/**
 * Carry response metadata on a request-local error while retaining the project
 * error for classification, reporting, and stack rendering.
 */
export declare function wrapDataResponseMetadataError(error: unknown, metadata: DataResponseMetadata): Error;
/** Return the project failure carried by {@link wrapDataResponseMetadataError}. */
export declare function unwrapDataResponseMetadataError(error: Error): unknown;
/** Read response metadata attached by {@link attachDataResponseMetadata}. */
export declare function getAttachedDataResponseMetadata(carrier: Error): DataResponseMetadata;
export declare function serializeResponseCookie(cookie: ResponseCookie): string;
export declare function appendDataResponseMetadata(target: Headers, metadata: DataResponseMetadata): void;
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