import { Functional } from '../../../../../Class/Functional';
import { Done } from '../../../../../Class/Functional/Done';
import { System } from '../../../../../system';
export type I = {
    url: string;
    opt: RequestInit;
};
export type O = {
    response: {
        status: number;
        body: string;
        url: string;
        bodyUsed: boolean;
        headers: object;
        redirected: boolean;
        ok: boolean;
        statusText: string;
        type: string;
    };
};
export default class Fetch extends Functional<I, O> {
    constructor(system: System);
    f({ url, opt }: I, done: Done<O>): Promise<void>;
}
