import * as MongoDB from 'mongodb';
import { Model } from "../models";
import { Context } from '../context';
export declare class Authorization extends Model {
    roles: MongoDB.Collection;
    groups: MongoDB.Collection;
    private _mGetUserRolesFromGroups(id);
    private _mGetUserPermissionsFromRules(id, extraRules?);
    private _mFetchData(appName, modelName, options, ctx);
    authorize(options: {
        match: string;
        fetch: any;
    } | boolean, ctx: Context): Promise<void>;
}