import { EnvironmentService } from '../../services/environment.service';
import { TokenService } from './oauth.service';
export declare class HeaderService {
    private readonly tokenService;
    private readonly environmentService;
    constructor(tokenService: TokenService, environmentService: EnvironmentService);
    /**
     * Accept-Language header's value.
     *
     * @private
     * @memberof HeaderService
     * @default 'en'
     */
    private locale;
    /**
     * Gets the header with the Authentication header.
     *
     * @readonly
     * @memberof HeaderService
     */
    readonly header: {
        'Content-Type': string;
        'Access-Control-Allow-Origin': string;
        Accept: string;
    };
    readonly fileHeader: {
        'Content-Type': string;
        'Access-Control-Allow-Origin': string;
        Accept: string;
    };
    /**
     * This function sets the Accept-Language's value.
     *
     * @param {string} locale
     * @memberof HeaderService
     */
    setLocale(locale: string): void;
}