import { Subject } from 'rxjs';
export declare class ConfigService {
    /**
    * Bus of configuration error.
    */
    confErrorBus: Subject<string>;
    /**
    * Object which contains the configuration (json format).
    */
    private config;
    constructor();
    /**
    * Retrieve Value from key in configuration object.
    * @returns configuration value
    */
    getValue(key: string): any;
    /**
    * Notify bus error.
    */
    errorCallBack(key: string): void;
    /**
    * Get configuration object.
    * @returns configuration Object
    */
    getConfig(): Object;
    /**
    * Set configuration object.
    * @param config Object
    */
    setConfig(config: Object): void;
}