import { Characteristic as HapCharacteristic, CharacteristicValue, CharacteristicProps } from 'hap-nodejs';
import { Service } from './service';
/**
 * Represents a wrapper around HAP characteristics with with support for easy configuration and update.
 */
export declare class Characteristic<TValue extends CharacteristicValue> {
    /**
     * Initializes a new Characteristic instance.
     * @param service The parent service.
     * @param type The type of the characteristic.
     * @param value The initial value. If omitted, the cached value is used.
     */
    constructor(service: Service, type: typeof HapCharacteristic, value?: TValue);
    /**
     * Contains the parent service.
     */
    private service;
    /**
     * Contains the characteristic.
     */
    private _hapCharacteristic;
    /**
     * Contains the type of the characteristic.
     */
    private _type;
    /**
     * Gets the type of the characteristic.
     */
    get type(): typeof HapCharacteristic;
    /**
     * Updates the properties of the characteristic.
     * @param properties The new properties of the characteristic.
     */
    setProperties(properties: CharacteristicProps): void;
    /**
     * Gets the value of the characteristic.
     */
    get value(): TValue | null;
    /**
     * Sets the value of the characteristic.
     */
    set value(value: TValue | null);
    /**
     * Contains a handler that is executed when the value of the characteristic has been changed by the user.
     */
    private _valueChanged;
    /**
     * Gets a handler that is executed when the value of the characteristic has been changed by the user.
     */
    get valueChanged(): ((newValue: TValue) => Promise<void> | void) | null;
    /**
     * Sets a handler that is executed when the value of the characteristic has been changed by the user.
     */
    set valueChanged(value: ((newValue: TValue) => Promise<void> | void) | null);
}