/**
 * Cookie serialization helpers shared by the request context, session, and CSRF
 * middleware.
 *
 * @module bquery/server
 */
import type { ServerCookieOptions } from './types';
/**
 * Serialize a `Set-Cookie` header value, validating the name and attribute
 * values so request-controlled data can never inject extra cookie attributes.
 */
export declare const serializeCookie: (name: string, value: string, options?: ServerCookieOptions) => string;
/**
 * Append a `Set-Cookie` header to an existing response without collapsing it
 * into other cookies.
 *
 * Responses built by `createServer()` expose mutable headers, so the cookie is
 * appended in place. When the headers are immutable (e.g. a response produced by
 * `Response.redirect()`), the response is reconstructed around the same body so
 * the cookie is still emitted.
 */
export declare const appendSetCookie: (response: Response, cookie: string) => Response;
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