Retrieve a Heidi token for the authenticated admin and practice group.
curl -i -X GET \
https://developer.herohealth.net/_mock/apis/public-api/openapi/v1/partners/heidi/token \
-H 'x-api-key: YOUR_API_KEY_HERE' \
-H 'x-practice-group-id: YOUR_API_KEY_HERE'{ "token": "string", "expiration_time": "2019-08-24T14:15:22Z" }