import { ExperimentConfig } from './config';
import { ExperimentClient } from './experimentClient';
/**
 * Initializes a singleton {@link ExperimentClient} identified by the configured
 * instance name.
 *
 * @param apiKey The deployment API Key
 * @param config See {@link ExperimentConfig} for config options
 */
export declare const initialize: (apiKey: string, config?: ExperimentConfig) => ExperimentClient;
/**
 * Initialize a singleton {@link ExperimentClient} which automatically
 * integrates with the installed and initialized instance of the amplitude
 * analytics SDK.
 *
 * You must be using amplitude-js SDK version 8.17.0+ for this integration to
 * work.
 *
 * @param apiKey The deployment API Key
 * @param config See {@link ExperimentConfig} for config options
 */
export declare const initializeWithAmplitudeAnalytics: (apiKey: string, config?: ExperimentConfig) => ExperimentClient;
/**
 * Provides factory methods for storing singleton instances of {@link ExperimentClient}
 * @category Core Usage
 */
export declare const Experiment: {
    initialize: (apiKey: string, config?: ExperimentConfig) => ExperimentClient;
    initializeWithAmplitudeAnalytics: (apiKey: string, config?: ExperimentConfig) => ExperimentClient;
};