import { DynamicConfig, Layer, StatsigOptions, StatsigOverrides, StatsigUser } from 'statsig-js';
export interface StatsigStatic {
    initialize(sdkKey: string, user?: StatsigUser | null, options?: StatsigOptions | null): Promise<void>;
    prefetchUsers(users: StatsigUser[]): Promise<void>;
    checkGate(gateName: string, ignoreOverrides: boolean): boolean;
    getConfig(configName: string, ignoreOverrides: boolean): DynamicConfig;
    getExperiment(experimentName: string, keepDeviceValue: boolean, ignoreOverrides: boolean): DynamicConfig;
    getLayer(layerName: string, keepDeviceValue: boolean): Layer;
    logEvent(eventName: string, value: string | number | null, metadata: Record<string, string> | null): void;
    updateUser(user: StatsigUser | null): Promise<boolean>;
    shutdown(): void;
    overrideGate(gateName: string, value: boolean): void;
    overrideConfig(configName: string, value: object): void;
    removeGateOverride(name?: string): void;
    removeConfigOverride(name?: string): void;
    getAllOverrides(): StatsigOverrides;
    getStableID(): string;
    initializeCalled(): boolean;
}
export declare function staticImplements<T>(): <U extends T>(constructor: U) => void;