/**
 * @namespace Database
 * @description Validate
 */
import { ImbricateDocumentQuery } from "./definition";
/**
 * Validate imbricate document query
 *
 * @param query query to validate
 *
 * @returns a string error message if validation failed
 *        null if validation passed
 */
export declare const validateImbricateDocumentQuery: (query: ImbricateDocumentQuery) => string | null;