export declare const init: (apiKey: string) => void;
export declare const identify: (key: string, value: any) => Promise<void>;
export declare const identifyOnce: (key: string, value: any) => Promise<void>;
export declare const setUserId: (userId: string) => Promise<void>;
export declare const resetUserId: () => Promise<void>;
export declare const track: (eventName: string, data: any) => Promise<void>;
export declare const setGroup: (group: string, value: string | string[]) => Promise<void>;