/**
 * The threads on one page, keyed the way triggers look them up.
 *
 * The API answers with one overview per context on the page: the open thread when
 * there is one, otherwise the latest resolved one. Held as a map from `threadKey` so a
 * trigger for any kind of context reads its own entry without a search, and so a
 * change to one thread can be written back in place.
 */
import type { P1Client, ThreadOverview } from '@pantheon-systems/css-client';
export declare const DOCUMENT_THREADS_KEY = "p1-document-threads";
export type DocumentThreads = Readonly<Record<string, ThreadOverview>>;
export declare const NO_THREADS: DocumentThreads;
export declare function documentThreadsKey(siteId: string | undefined, documentId: string | undefined): readonly ["p1-document-threads", string | undefined, string | undefined];
export declare function overviewKey(thread: ThreadOverview): string;
export declare function indexThreads(threads: ThreadOverview[]): DocumentThreads;
export declare function fetchDocumentThreads(client: P1Client, siteId: string, documentId: string): Promise<DocumentThreads>;