import { BaseFliptClient } from '../core/base';
import { ClientOptions } from '../core/types';
export * from '../core/types';
export * from '../core/base';
export declare class FliptClient extends BaseFliptClient {
    private updateInterval?;
    /**
     * Initialize the client
     * @param namespace - optional namespace to evaluate flags
     * @param options - optional client options
     * @returns {Promise<FliptClient>}
     */
    static init(options?: ClientOptions): Promise<FliptClient>;
    private setupAutoRefresh;
    private cleanupAutoRefresh;
    close(): void;
}