export declare function looksLikeRssOrAtomFeed(xml: string): boolean;
export declare function extractEnclosureFromFeed(xml: string): {
    enclosureUrl: string;
    durationSeconds: number | null;
} | null;
export declare function extractEnclosureForEpisode(feedXml: string, episodeTitle: string): {
    enclosureUrl: string;
    durationSeconds: number | null;
} | null;
export declare function extractItemDurationSeconds(itemXml: string): number | null;
export declare function decodeXmlEntities(value: string): string;
export declare function normalizeLooseTitle(value: string): string;
export declare function extractFeedItems(xml: string): string[];
export declare function extractItemTitle(itemXml: string): string | null;
export declare function extractEnclosureUrlFromItem(xml: string): string | null;
