import { AxiosInstance } from 'axios';
import { AxiosResponse, AxiosRequestConfig as ReqConfig, AxiosInterceptorManager } from 'axios';
export declare type Interceptor<T> = AxiosInterceptorManager<T>['use'];
export interface Operation<T> {
    getContext: () => T;
    setContext: (config: any) => void;
    setHeaders: (headers: any) => void;
}
export declare type FulfilledHandler<T> = (value: T) => T;
export declare type Next<T> = (op: Operation<T>) => T;
export declare type OnFulfilled<T> = (op: Operation<T>, next: Next<T>) => T;
export declare type OnRejected = (error: Error) => any;
export interface Middleware<T, C> {
    type: T;
    handlers: [FulfilledHandler<C>, OnRejected | undefined];
}
export declare type RequestMiddleware = Middleware<'request', ReqConfig>;
export declare type ResponseMiddleware = Middleware<'response', AxiosResponse>;
export declare function createRequestMiddleware(onFulfilled: OnFulfilled<ReqConfig>, onRejected?: OnRejected): RequestMiddleware;
export declare function createResponseMiddleware(onFulfilled: OnFulfilled<AxiosResponse>, onRejected?: OnRejected): ResponseMiddleware;
export declare type ClientInstance = AxiosInstance;
export interface ClientOpts {
    url: string;
    middlewares?: Array<RequestMiddleware | ResponseMiddleware>;
}
export declare class AxiosClient {
    __client: ClientInstance;
    constructor(opts: ClientOpts);
    readonly client: ClientInstance;
}