export declare const WATCHED_TAGS_KEY = "__or__watched_tags__";
declare class TagWatcher {
    intervals: Record<string, ReturnType<typeof setInterval>>;
    tags: {
        id: number;
        selector: string;
    }[];
    observer: IntersectionObserver;
    private readonly sessionStorage;
    private readonly errLog;
    private readonly onTag;
    constructor(params: {
        sessionStorage: Storage;
        errLog: (args: any[]) => void;
        onTag: (tag: number) => void;
    });
    fetchTags(ingest: string, token: string): Promise<void>;
    setTags(tags: {
        id: number;
        selector: string;
    }[]): void;
    onTagRendered(tagId: number): void;
    clear(): void;
}
export default TagWatcher;