import { Connection } from "mongoose";
import { ClsService } from "nestjs-cls";
export declare class DatabaseService {
    private readonly cls;
    private connection;
    constructor(cls: ClsService, connection: Connection);
    private _checkPermission;
    listCollections(): Promise<any[]>;
    listCommand(): Promise<any[]>;
    private _bindQueryOption;
    private _loopBindQuery;
    runCommand(collectionName: string, command: string, options: Object[], readableCommand: string, page?: number, pageSize?: number): Promise<any>;
}