import { DxDocument } from '@digitaix/types';
export interface DocumentTransformer<T extends DxDocument> {
    collectionPath: string;
    send: (document: T) => any;
    receive: (document: any) => T;
}
export declare function MapToArray(...fieldPaths: string[]): (originalDocument: any) => any;
export declare function ArrayToMap(...fieldPaths: string[]): (originalDocument: any) => any;
export declare class DocumentTransformerService {
    transformers: Map<string, DocumentTransformer<any>>;
    constructor(transformers: any | null);
    send<D extends DxDocument>(collectionPath: string, document: D): any;
    receive<D extends DxDocument>(collectionPath: string, document: any): D;
}