我正在将action.devices.types.THERMOSTAT与action.devices.traits.TemperatureSetting一起使用，我想将摄氏温度的自定义范围设置为16到28吗？我尝试使用bufferRangeCelsius属性，但对范围没有任何影响，默认的摄氏温度范围为10到32，我尝试了如下操作，

app.onSync((body,headers) => {
 return {
  requestId: body.requestId,payload: {
    agentUserId: '1836.15267389',devices: [{
     id: '123',type: 'action.devices.types.THERMOSTAT',traits: [
      'action.devices.traits.TemperatureSetting'
     ],name: {
     defaultNames: ['Honeywell Thermostat T-1000'],name: 'Homer Simpson Thermostat',nicknames: ['living room thermostat']
     },willReportState: false,attributes: {
      availableThermostatModes: 'off,heat,cool,on',thermostatTemperatureUnit: 'C',bufferRangeCelsius : 16-28
     },deviceInfo: {
      manufacturer: 'honeywell',model: 't-1000',hwVersion: '3.2',swVersion: '11.4'
     },customData: {
      fooValue: 74,barValue: true,bazValue: 'lambtwirl'
      }
    }]
   }
 };
});