import type { IncomingMessage, ServerResponse } from 'http';
export declare const markPreviewBridgeDocumentUncacheable: (proxyRes: IncomingMessage) => void;
export declare const createUserDevServerProxy: (userPort: number, userHost?: string, options?: {
    isPreviewBridgeEnabled?: boolean;
    expectedPreviewParentOrigin?: string;
}) => {
    middleware: import("http-proxy-middleware").RequestHandler<IncomingMessage, ServerResponse<IncomingMessage>, (err?: any) => void>;
    setVariantTarget: (port: number | null) => void;
};
//# sourceMappingURL=proxy-config.d.ts.map