import { LiveOverlayResponse, NetworkCore, NetworkPriority, StatsigClientEmitEventFunc, StatsigUser } from '@oai-statsig/client-core';
import { StatsigOptions } from './StatsigOptions';
type LiveEvaluationsFetchResult = {
    hasUpdates: false;
    lcut?: number;
} | {
    hasUpdates: true;
    values: LiveOverlayResponse;
};
export default class StatsigNetwork extends NetworkCore {
    private _initializeUrlConfig;
    private _option;
    constructor(options: StatsigOptions | null, emitter?: StatsigClientEmitEventFunc);
    fetchEvaluations(sdkKey: string, current: string | null, priority?: NetworkPriority, user?: StatsigUser, isCacheValidFor204?: boolean): Promise<string | null>;
    fetchLiveEvaluations(sdkKey: string, user: StatsigUser, sinceTime?: number, previousDerivedFields?: Record<string, unknown>, priority?: NetworkPriority, fullChecksum?: string): Promise<LiveEvaluationsFetchResult | null>;
    private _fetchEvaluations;
}
export {};