import { Editor } from '../../core/Editor.js';
/**
 * Authoritative room-seeding helper.
 *
 * Writes the full state of a local editor into a target Yjs document,
 * replacing any prior content. This is the single source of truth for
 * the "overwrite a room with local state" operation.
 *
 * Used by `SuperDoc.upgradeToCollaboration()` to seed a collaborative
 * room before the collaborative runtime mounts.
 */
import * as Y from 'yjs';
/**
 * Authoritatively overwrite a Yjs document with the current editor state.
 *
 * This is a **replacement** operation, not a merge. All prior content in the
 * target ydoc (fragment, parts, media, metadata) is replaced with the
 * editor's current state.
 *
 * Steps:
 * 1. Replace the Yjs XML fragment with the current ProseMirror document
 * 2. Seed non-document parts with authoritative replacement
 * 3. Replace media files (prune stale, upsert current)
 * 4. Write document metadata (bodySectPr, fonts, bootstrap marker)
 * 5. Clear stale legacy content (meta.docx)
 */
export declare function seedEditorStateToYDoc(editor: Editor, targetYdoc: Y.Doc): void;
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