/** This is not as of yet a full mercator crawler.
 */
import { scrapeMeta } from "./metadata-fetcher";
import { Link, URLFrontier } from "./url-frontier/url-frontier";
import { DePromisify } from "./utils/types";
export declare type MercatorSettings<T> = {
    urlFrontier: URLFrontier;
    dataFetcher: (string: Link) => T;
};
export declare type DefaultMercatorReturn = DePromisify<ReturnType<typeof scrapeMeta>>;
export declare class Mercator<U> {
    #private;
    constructor(settings?: Partial<MercatorSettings<Promise<U>>>);
    sendURL(url: Link): Promise<unknown extends U ? {
        metadata: import("./metadata-fetcher").WebPageMeta | undefined;
        articleBody: string;
    } : U>;
    seedURL(url: string): Promise<unknown extends U ? {
        metadata: import("./metadata-fetcher").WebPageMeta | undefined;
        articleBody: string;
    } : U>;
    runToCompletion(): Promise<void>;
    [Symbol.asyncIterator](): AsyncGenerator<unknown extends U ? {
        metadata: import("./metadata-fetcher").WebPageMeta | undefined;
        articleBody: string;
    } : U, void, unknown>;
}
//# sourceMappingURL=mercator.d.ts.map