import type { CreateIndexesOptions, IndexSpecification } from 'mongodb';
import type { DocumentMetadata, DocumentOptions, DocumentClass } from '../interfaces/document';
export declare const Document: (options?: DocumentOptions) => ClassDecorator;
/**
 * Declare an index on the document's collection. Repeatable; composes with
 * `@Document({ indexes: [...] })`. Indexes are created by
 * `MongoConnection.ensureIndexes()` (or automatically with `autoIndex: true`).
 */
export declare const Index: (keys: IndexSpecification, options?: CreateIndexesOptions) => ClassDecorator;
export declare const getDocumentMetadata: <T extends object>(target: DocumentClass<T>) => DocumentMetadata;
export declare const getRegisteredDocuments: () => DocumentMetadata[];
export declare const clearDocumentRegistry: () => void;
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