import { EventEmitter2 } from '@nestjs/event-emitter';
import { ConnectionState } from '../devices.constants';
import { DeviceEntity } from '../entities/devices.entity';
import { ChannelsPropertiesService } from './channels.properties.service';
import { ChannelsService } from './channels.service';
import { DeviceConnectionStateService } from './device-connection-state.service';
import { DevicesService } from './devices.service';
export declare class DeviceConnectivityService {
    private readonly devicesService;
    private readonly channelsService;
    private readonly channelsPropertiesService;
    private readonly deviceConnectionStateService;
    private readonly eventEmitter;
    constructor(devicesService: DevicesService, channelsService: ChannelsService, channelsPropertiesService: ChannelsPropertiesService, deviceConnectionStateService: DeviceConnectionStateService, eventEmitter: EventEmitter2);
    setConnectionState(deviceId: DeviceEntity['id'], state: {
        state: ConnectionState;
        reason?: string;
        ts?: number;
    }): Promise<void>;
    private findOrCreateConnectionChannel;
    private findOrCreateConnectionProperty;
}