Allow hs_created_by_user_id to be set via API call

HubSpot Ideas
1

When creating a contact via an API call, hs_created_by_user_id is set to null.

It would be nice if the API was able to use the provided OAuth token to figure out which HubSpot user was creating the contact, and then using that info to set hs_created_by_user_id appropriately.

2

Its not only on contact, also on custom objects.

When trying to set, it throws an exception.