import type { WorkDocumentContent } from './work-types';
export declare const WORK_DOCUMENT_SNAPSHOT_SCHEMA: "a3s.office.document.snapshot";
export declare const WORK_DOCUMENT_SNAPSHOT_VERSION: 1;
export declare const WORK_DOCUMENT_SNAPSHOT_MEDIA_TYPE: "application/vnd.a3s.office.document-snapshot+json;version=1";
export interface WorkDocumentSnapshot {
    schema: typeof WORK_DOCUMENT_SNAPSHOT_SCHEMA;
    version: typeof WORK_DOCUMENT_SNAPSHOT_VERSION;
    content: WorkDocumentContent;
}
/**
 * Encode the complete controlled document value as deterministic JSON.
 *
 * The snapshot requires a synchronized structured model. Optional properties
 * whose value is `undefined` are omitted because undefined is outside the JSON
 * data model; every JSON-defined field is retained exactly.
 */
export declare function encodeWorkDocumentSnapshot(content: WorkDocumentContent): string;
/** Decode and validate one versioned structured-document snapshot. */
export declare function decodeWorkDocumentSnapshot(encoded: string): WorkDocumentContent;