Yesterday Apple announced their health records API.
The documentation for it states that:
...clinical records are read-only, so you can’t request authorization to share clinical record types. You can’t create or save new HKClinicalRecord objects.
If I want to do some prototyping, and I don't work for one of the hospitals or clinics Apple currently supports, how can I load data into HealthKit to test reading and using this data in my app?