import { ValidationArguments, ValidationOptions, ValidatorConstraintInterface } from 'class-validator';
import { DevicesService } from '../services/devices.service';
export declare class DeviceExistsConstraintValidator implements ValidatorConstraintInterface {
    private readonly devicesService;
    constructor(devicesService: DevicesService);
    validate(deviceId: string | undefined): Promise<boolean>;
    defaultMessage(args: ValidationArguments): string;
}
export declare const ValidateDeviceExists: (validationOptions?: ValidationOptions) => (object: object, propertyName: string) => void;