import { EcoFlowAccessoryBase } from '@ecoflow/accessories/ecoFlowAccessoryBase';
import { ServiceBase } from '@ecoflow/services/serviceBase';
import { Characteristic } from 'homebridge';
export declare class ContactSensorService extends ServiceBase {
    protected readonly ecoFlowAccessory: EcoFlowAccessoryBase;
    private contactState;
    constructor(ecoFlowAccessory: EcoFlowAccessoryBase, serviceSubType?: string);
    protected addCharacteristics(): Characteristic[];
    updateState(closed: boolean): void;
}