import AnalyticsEvent from '../analytics/AnalyticsEvent';
import { EventBus } from '../events/EventBus';
export declare class PluginUsageTracker {
    private eventBus;
    private pluginUsage;
    private pluginLastAddedAt;
    constructor(eventBus: EventBus);
    getPluginUsage: (name: string) => number | undefined;
    updatePluginUsageData: (event: AnalyticsEvent) => void;
    cleanup: () => void;
}