import type { Dispatcher } from 'undici';
import type { SsrfBridge } from '../../ssrf';
import type { ProxyOption, SsrfOption } from '../node-agents';
export type CustomFetch = (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>;
export type RequestAuthorizer = (url: URL) => Promise<void>;
export interface TransportTimeoutOptions {
    headersTimeout?: number;
    bodyTimeout?: number;
    connectTimeout?: number;
}
export interface CreateDispatcherTransportOptions {
    proxy?: ProxyOption;
    ssrf?: SsrfOption;
    timeouts?: TransportTimeoutOptions;
    authorize?: RequestAuthorizer;
}
export interface DispatcherTransport {
    asCustomFetch(): CustomFetch;
    getDispatcher(): Dispatcher;
}
export interface BuildDispatcherOptions {
    timeouts?: TransportTimeoutOptions;
    authorize?: RequestAuthorizer;
}
export declare function buildDispatcher(proxy: ProxyOption, ssrf: SsrfOption, options?: BuildDispatcherOptions): Dispatcher;
export declare function createDispatcherTransport(options?: CreateDispatcherTransportOptions): DispatcherTransport;
export declare function createSsrfInterceptor(bridge: SsrfBridge): Dispatcher.DispatcherComposeInterceptor;
export declare function createAuthorizationInterceptor(authorize: RequestAuthorizer): Dispatcher.DispatcherComposeInterceptor;
export declare function dispatchedFetch(dispatcher: Dispatcher, input: RequestInfo | URL, init?: RequestInit): Promise<Response>;