import { Target } from '../utils';
/** [Re-visit policy](https://en.wikipedia.org/wiki/Web_crawler#Re-visit_policy) for a Crawler */
export interface RevisitPolicy {
    /** @returns whether `target` can be revisited by the {@linkcode Crawler} */
    canRevisit(target: Target): boolean;
}
/** Constructs a {@linkcode RevisitPolicy} from the given predicate function */
export declare const revisitPolicy: (canRevisit: (target: Target) => boolean) => RevisitPolicy;
/** Default revisit policy that always returns `false` */
export declare const defaultRevisitPolicy: RevisitPolicy;