```javascript let d = new Date(2016,1,1); let options = { startDate: (new Date(2018,10,1)).toISOString(), // required endDate: (new Date()).toISOString(), // optional; default now }; ``` ```javascript
AppleHealthKit.getBasalEnergyBurned(options: Object, (err: Object, results: Object) => {
if (err) { return; } console.log(results) }); ```