import { CollaborationConfig, CollaborationTransport, YDocLike, YjsFactories } from 'pptx-viewer-shared';
import { CollabProviderHandle } from './collaboration-provider';
/** A fully-wired collaboration session: the doc, its factories, and transport. */
export interface CollabSession {
    /** The live Y.Doc (structural view used by the shared reconcile helpers). */
    ydoc: YDocLike;
    /** Factories the shared reconcile helpers use to build Y.Map/Array/Text. */
    factories: YjsFactories;
    /** The normalised transport provider handle. */
    provider: CollabProviderHandle;
    /** Tear down the provider and destroy the doc. */
    destroy: () => void;
}
/**
 * Build a live session for the given transport + config. Injectable so tests
 * can substitute an in-memory fake (see `collaboration.svelte.ts`).
 */
export type CollabSessionFactory = (transport: CollaborationTransport, config: CollaborationConfig) => Promise<CollabSession>;
/**
 * Default factory: dynamically import `yjs`, build a `Y.Doc` plus the
 * `YjsFactories`, and attach the requested transport provider.
 */
export declare const createDefaultSession: CollabSessionFactory;
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