import { CanActivate, ExecutionContext } from '@nestjs/common';
import { Request } from 'express';
import { Observable } from 'rxjs';
import { OperationToken } from './entities';
export declare type OperationTokenRequest = Request & {
    token: OperationToken;
};
export declare class OperationTokenGuard implements CanActivate {
    canActivate(context: ExecutionContext): boolean | Promise<boolean> | Observable<boolean>;
}