import * as fetch from 'node-fetch'; export declare type FetchMethod = 'GET' | 'POST' | 'PUT'; export interface FetchOptionsInterface { readonly method: FetchMethod; readonly url: string; readonly data?: object | string; readonly rawData?: fetch.BodyInit; readonly headers?: { [name: string]: string; }; } export declare class FetchService { call(options: FetchOptionsInterface): Promise; }