We are using the activities endpoint to retrieve activities for users (https://dev.fitbit.com/build/reference/web-api/activity/#get-daily-activity-summary).
We are seeing that there are several undocumented entries in the response from the server.
Current errors we are experiencing with undocumented fields:
response.activities[0].activityparentname
response.activities[0].startdate
Is there a complete list of all fields that may be included in the API answer?