import { Agent as HTTPAgent } from "http";
import { Agent as HTTPSAgent } from "https";
import { Headers, HttpClient, HttpMethod, RequestLogger, SendStreamOptions, GetStreamOptions, RequestConfig } from "./types";
export declare abstract class ClientUtilsBase implements HttpClient {
    apiBase: string;
    private fetch;
    private log?;
    private normalizeUrlFn;
    static headers: Headers;
    agent: HTTPAgent | HTTPSAgent;
    private disposed;
    protected ownsAgent: boolean;
    constructor(apiBase: string, fetch: any, normalizeUrlFn?: (url: string) => string);
    dispose(): void;
    addLogger(logger: Partial<RequestLogger>): void;
    static setDefaultHeaders(headers: Headers): void;
    private safeRequest;
    get<T>(url: string, requestInit?: RequestInit): Promise<T>;
    request(method: HttpMethod, url: string, requestInit?: RequestInit): Promise<Response>;
    post<T>(url: string, data: any, requestInit?: RequestInit, config?: RequestConfig): Promise<T>;
    put<T>(url: string, data: any, requestInit?: RequestInit, config?: RequestConfig): Promise<T>;
    delete<T>(url: string, requestInit?: RequestInit): Promise<T>;
    sendStream<T>(url: string, stream: any | string, requestInit?: RequestInit, { type, end, parseResponse }?: SendStreamOptions): Promise<T>;
    getStream(url: string, requestInit?: RequestInit, { type }?: GetStreamOptions): Promise<any>;
}