import { DataSource, EntitySubscriberInterface, UpdateEvent } from 'typeorm';
import { ChannelEntity } from '../entities/devices.entity';
export declare class ChannelEntitySubscriber implements EntitySubscriberInterface<ChannelEntity> {
    private readonly dataSource;
    constructor(dataSource: DataSource);
    listenTo(): typeof ChannelEntity;
    beforeUpdate(event: UpdateEvent<ChannelEntity>): void;
}