import { Service as HapService, Characteristic as HapCharacteristic, CharacteristicValue } from 'hap-nodejs';
import { Accessory } from './accessory';
import { Characteristic } from './characteristic';
/**
 * Represents a wrapper around HAP services with with support for auto-removal of unused characteristics.
 */
export declare class Service {
    /**
     * Initializes a new Service instance.
     * @param accessory The parent accessory.
     * @param type The type of the service.
     * @param name The name that should be displayed in HomeKit.
     * @param subType The sub type of the service. May be omitted if the type is already unique.
     */
    constructor(accessory: Accessory, type: typeof HapService, name: string, subType?: string);
    /**
     * Contains the parent accessory.
     */
    private _accessory;
    /**
     * Contains the HAP service.
     */
    private _hapService;
    /**
     * Contains the type of the service.
     */
    private _type;
    /**
     * Gets the type of the service.
     */
    get type(): typeof HapService;
    /**
     * Contains the name that should be displayed in HomeKit.
     */
    private _name;
    /**
     * Gets the name that should be displayed in HomeKit.
     */
    get name(): string;
    /**
     * Contains the sub type of the service. May be omitted if the type is already unique.
     */
    private _subType;
    /**
     * Gets the sub type of the service. May be omitted if the type is already unique.
     */
    get subType(): string | null;
    /**
     * Contains the characteristics.
     */
    private _characteristics;
    /**
     * Gets the characteristics.
     */
    get characteristics(): Array<Characteristic<CharacteristicValue>>;
    /**
     * Defines a characteristic for usage with the service. When defining a characteristic, it is marked as used and thus not removed from HomeKit after the initialization.
     * @param type The type of the characteristic.
     * @param value The initial value. If omitted, the cached value is used.
     */
    useCharacteristic<TValue extends CharacteristicValue>(type: typeof HapCharacteristic, value?: TValue): Characteristic<TValue>;
    /**
     * Removes all cached characteristics that have not been defined for usage.
     */
    removeUnusedCharacteristics(): void;
}