import type { NodeResponseHook, ResponseBodyHook, ResponseHeadersHook } from "./node-outcome-hook.js";
type MaybePromise<T> = T | Promise<T>;
type WebResponseHook = (response: Response, req: Request) => MaybePromise<Response>;
export type { ResponseBodyHook, ResponseHeadersHook } from "./node-outcome-hook.js";
export interface ResponseObserverHost {
    assertConfigurable(operation: string): void;
    addResponseHook(web: WebResponseHook, node: NodeResponseHook | undefined): void;
    enableResponseBodyTagging(): object;
    responseBodyOwners(): ReadonlySet<object>;
}
export interface ResponseObserverMethods {
    onResponseHeaders(fn: ResponseHeadersHook): this;
    onResponseBody(fn: ResponseBodyHook): this;
    onResponseRaw(fn: (response: Response, req: Request) => MaybePromise<Response>): this;
}
export interface ResponseObserverRuntime {
    install(host: ResponseObserverHost): ResponseObserverMethods;
}
export declare function createResponseObserverRuntime(): ResponseObserverRuntime;
//# sourceMappingURL=response-observer-runtime.d.ts.map