import type { HostContext } from './context';
import type { HostOverview } from '../client/lib/contract/types';
/**
 * Build the overview sampler.
 *
 * @returns an object whose `sample()` returns the current overview, refreshing
 *          each section on its own clock (see the module comment).
 */
export declare function createOverviewSampler(): {
    sample: () => Promise<HostOverview>;
};
/**
 * Register `/api/host/overview`.
 *
 * @param ctx - the host context whose web server owns the route.
 * @returns the route disposer.
 */
export declare function registerHostOverview(ctx: HostContext): () => void;