import { RequestContext } from "./requestContext";
export declare function getSnapshot(context: RequestContext): any;
export declare function idOf(type: {
    new (context?: RequestContext): any;
}): any;
export declare function restoreSnapshot(context: RequestContext, d: any): void;
export declare function automaticPersist(context: RequestContext, data: any, onSave: (data: any) => any): void;