import type { Context } from '../context.js';
import type { CookieOptions } from '../types.js';
import type { Stream } from 'node:stream';
import { Headers } from '../headers.js';
type SendResponse = (res: ServerResponse, body?: string | Buffer | Stream) => void;
/**
 * Server response class.
 */
export declare class ServerResponse {
    /**
     * Response headers.
     */
    headers: Headers;
    /**
     * Response has already been sent.
     */
    isSent: boolean;
    /**
     * Response status code.
     */
    statusCode: number;
    /**
     * Response status message.
     */
    statusMessage: string | null;
    _ctx: WeakRef<Context> | undefined;
    _sendResponse: SendResponse;
    constructor(sendResponse: SendResponse);
    /**
     * Append header value.
     */
    append(name: string, value: string): this;
    /**
     * Bind context to response.
     */
    bindContext(ctx: Context): void;
    /**
     * Set response content length.
     */
    length(len: number): this;
    /**
     * Send response.
     */
    send(body?: string | Buffer | Stream): Promise<void>;
    /**
     * Set HTTP header for response.
     */
    set(name: string, value: string): this;
    /**
     * Set cookie value.
     */
    setCookie(name: string, value: string, options: CookieOptions): this;
    /**
     * Set response status.
     */
    status(code: number, message?: string): this;
    /**
     * Set response content type.
     */
    type(type: string): this;
}
export {};