import { Exception } from './exception';
import { RequestOptions, RequestConfig, RequestHeaders, RequestDebugInfo, RequestSpec } from './types';
export declare const NETWORK_ERRORS: string[];
export declare const DEFAULT_REQUEST_CONFIG: RequestConfig;
export declare class Request {
    config: RequestConfig;
    constructor(options?: Partial<RequestConfig>);
    get(url: string, options?: RequestOptions): Promise<any>;
    post(url: string, options?: RequestOptions): Promise<any>;
    put(url: string, options?: RequestOptions): Promise<any>;
    delete(url: string, options?: RequestOptions): Promise<any>;
    sendJson(method: string, url: string, options?: RequestOptions): Promise<any>;
    send(method: string, url: string, options?: RequestOptions): Promise<Response>;
    sendRaw(method: string, url: string, options?: RequestOptions): Promise<Response>;
    protected prepareRequestSpec(method: string, url: string, options?: RequestOptions): Promise<RequestSpec>;
    protected prepareUrl(url: string, options: RequestOptions): string;
    protected inferContentTypeFromBody(body: any): string | null;
    protected mergeHeaders(...headers: RequestHeaders[]): {
        [key: string]: string;
    };
    protected createErrorFromResponse(requestSpec: RequestSpec, res: Response): Promise<Error>;
    onRetry(_error: Error, _info: RequestDebugInfo): void;
    onError(_error: Error, _info: RequestDebugInfo): void;
    protected readErrorResponse(res: Response): Promise<any>;
}
export declare class RequestFailedError extends Exception {
    constructor(requestSpec: RequestSpec, status: number, details: any);
}