import { Controller } from '@nestjs/common/interfaces';
import { CanActivate, ExecutionContext } from '@nestjs/common';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/toPromise';
export declare class GuardsConsumer {
    tryActivate(guards: CanActivate[], data: any, instance: Controller, callback: (...args) => any): Promise<boolean>;
    createContext(instance: Controller, callback: (...args) => any): ExecutionContext;
    pickResult(result: boolean | Promise<boolean> | Observable<boolean>): Promise<boolean>;
}