import { ContextManager, Context } from '../context';
import { Event } from '../event';
/** @zcontext */
export declare class AnalyticsContext extends Context {
    readonly onEvent: Event<[string, any]>;
    /** @zprop */
    logEvent(name: string, params?: any): void;
}
/**
 * Logs an analytics event.
 */
export declare function logEvent(mgr: ContextManager, name: string, params?: any): void;
/**
 * Returns the analytics onEvent event.
 */
export declare function useAnalyticsOnEvent(mgr: ContextManager): Event<[string, any]>;