/// <reference types="node" />
import { FeatureStateUpdate, FeatureUpdatePostManager, NodejsOptions, PollingBase, PollingService, FeaturesFunction } from 'featurehub-javascript-client-sdk';
import { RequestOptions } from 'https';
export * from 'featurehub-javascript-client-sdk';
export declare type ModifyRequestFunction = (options: RequestOptions) => void;
export declare class NodejsPollingService extends PollingBase implements PollingService {
    private readonly uri;
    private readonly _options;
    modifyRequestFunction: ModifyRequestFunction | undefined;
    constructor(options: NodejsOptions, url: string, frequency: number, _callback: FeaturesFunction);
    poll(): Promise<void>;
}
export declare class NodejsFeaturePostUpdater implements FeatureUpdatePostManager {
    modifyRequestFunction: ModifyRequestFunction | undefined;
    post(url: string, update: FeatureStateUpdate): Promise<boolean>;
}