import { IncomingMessage, ServerResponse } from 'node:http';
type IncomingHttpHeaders = Record<string, string | string[] | undefined>;
type NextFunction = (err?: unknown) => void;
export type Middleware = (req: IncomingMessage, res: ServerResponse, next: NextFunction) => void;
export type ResponseData = {
    statusCode: number;
    headers: IncomingHttpHeaders;
};
export declare function proxyResponseHeaders(data: ResponseData, res: ServerResponse): void;
export declare function responseSignal(res: ServerResponse): AbortSignal;
export {};
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