import { ConfigurationSource } from './configurationSource';
import { DynamicProperties } from "../properties/dynamicProperties";
export declare class ConfigurationManager {
    private properties;
    pollingIntervalInSeconds: number;
    sourceTimeoutInMs: number;
    private _sources;
    private disposed;
    private _polling;
    constructor(properties: DynamicProperties, pollingIntervalInSeconds: number, sourceTimeoutInMs: number);
    private ensuresPolling();
    polling(): Promise<void>;
    private loadPropertiesFromSources(results);
    private loadProperties(props);
    dispose(): void;
    /**
     * Initialize source(s) and return only when all sources are initialized
     * @param sources List of sources
     * @returns {Promise<T>}
     */
    registerSourcesAsync(sources: Array<ConfigurationSource>): Promise<{}>;
}