import { AxiosInstance, AxiosRequestConfig } from 'axios';
import { Logger } from 'winston';
export declare class RequestBuilder {
    private readonly baseUrl;
    private readonly credentials;
    private _authorizationHeader?;
    protected axiosInstance: AxiosInstance;
    private accessTokenInstance?;
    apiVersion: number;
    constructor(baseUrl: string, credentials: Credentials, options?: {
        debug?: boolean;
        logger?: Logger;
        version?: number;
    }, _authorizationHeader?: string | undefined);
    getAuthorizationHeader(): Promise<string>;
    private readonly getAccessTokenInstance;
    private isExpired;
    request<T>(config: AxiosRequestConfig): Promise<T>;
    set authorizationHeader(authorizationHeader: string | undefined);
    get authorizationHeader(): string | undefined;
    private generateToken;
}
interface Credentials {
    clientId: string;
    clientSecret?: string;
    username?: string;
    password?: string;
}
export {};