Is heart rate data from Garmin supported?

Garmin heart rate data through our heart_rate and heart_rate/summaries endpoints are not currently supported. They may, however, be available via the user's activity summaries. The following is an example of heart rate data for the sourceData property, though its presence is not guaranteed:

{
 "calories": 509,
 "createdAt": "2019-09-02T07:14:01.491Z",
 "date": "2019-09-02",
 "distance": 3268,
 "duration": 6030,
 "humanId": "b9cc1437c3ccc4af4c33fcdf8db864d3",
 "id": "5d6e12b92dc959010381a6ef",
 "light": 100.5,
 "moderate": 0,
 "sedentary": 1339.5,
 "source": "garmin",
 "sourceData": {
 "activityStressDurationInSeconds": 6000,
 "activityType": "WALKING",
 "averageHeartRateInBeatsPerMinute": 82,
 "averageStressLevel": 52,
 "durationInSeconds": 86400,
 "floorsClimbed": 8,
 "floorsClimbedGoal": 10,
 "highStressDurationInSeconds": 10860,
 "intensityDurationGoalInSeconds": 9000,
 "lowStressDurationInSeconds": 12120,
 "maxHeartRateInBeatsPerMinute": 158,
 "maxStressLevel": 98,
 "mediumStressDurationInSeconds": 18540,
 "minHeartRateInBeatsPerMinute": 57,
 "netKilocaloriesGoal": 1500,
 "restStressDurationInSeconds": 11640,
 "stepsGoal": 10000,
 "stressDurationInSeconds": 41520,
 "stressQualifier": "balanced_awake"
 },
 "steps": 5078,
 "updatedAt": "2019-09-06T05:36:16.434Z",
 "userId": "18f202cc602dd501000d5688",
 "vigorous": 0
 }