import type { JaegerAccessor } from '../../accessor/jaeger.ts';
import type { ScopeMatch } from '../hierarchy/scope.ts';
/**
 * Throw ENOENT unless the service is known to Jaeger.
 *
 * The operations endpoint answers 200 with an empty list for a service that
 * was never seen, so an unknown service would otherwise look like an empty
 * directory instead of a missing one.
 */
export declare function assertService(accessor: JaegerAccessor, service: string, virtual: string): Promise<void>;
export declare function serviceGuard(accessor: JaegerAccessor, match: ScopeMatch, virtual: string): Promise<void>;
export declare const readdir: import("../hierarchy/probe.ts").ReaddirFn<JaegerAccessor>;
//# sourceMappingURL=readdir.d.ts.map