import { Readable } from "node:stream";
import type { HttpContext } from "../server/http-context";
import { type HttpResponseHeaders } from "./http-response";
/**
 * Low-level body types accepted by the HTTP server writer.
 */
export type HttpResponseBody = string | Buffer | Uint8Array | Readable | undefined;
export interface SerializedHttpResponse {
    status?: number;
    headers?: HttpResponseHeaders;
    body?: HttpResponseBody;
}
export type HttpResponseSerializer = (value: unknown, ctx: HttpContext) => SerializedHttpResponse | Promise<SerializedHttpResponse>;
/**
 * Default serializer used when handlers return plain values.
 * It infers body type and sets a default `content-type` when missing.
 */
export declare const defaultResponseSerializer: HttpResponseSerializer;