import { Survey } from '../posthog-surveys-types';
import { PostHogPersistence } from '../posthog-persistence';
export declare class SurveyEventReceiver {
    private readonly eventRegistry;
    private readonly persistence?;
    constructor(persistence?: PostHogPersistence);
    register(surveys: Survey[]): void;
    on(event: string): void;
    getSurveys(): string[];
    getEventRegistry(): Map<string, string[]>;
    private _saveSurveysToStorage;
}