TPLinkSmartDeviceHandler = function TPLinkSmartDeviceHandler(gladys, tpLinkClient, serviceId) {
  this.gladys = gladys;
  this.client = tpLinkClient;
  this.serviceId = serviceId;
  this.tpLinkDevicesBySerialNumber = new Map();
  this.discoverDevicesDelay = 2000;
}
@description Add ability to control a Philips Hue light.
@param {object} gladys - Gladys instance.
@param {object} tpLinkClient - TP-LinkClient.
@param {string} serviceId - UUID of the service in DB.
@example
const exampleLightHandler = new ExampleLightHandler(gladys, client, serviceId);