import { XApiState } from "./lrs";
import { XApiConfig } from "./xapi-interface";
export declare const saveActivityState: (config: XApiConfig, stateId: string, state: XApiState) => Promise<boolean>;
export declare const retrieveActivityState: (config: XApiConfig, stateId: string, defaultValue?: import("./statement").JsonSerializable | undefined) => Promise<XApiState>;