1. To interrupt the request if auth version > 2.0 and force user to provide region name in the request 2. To allow the request but shows up a more clear reason about why 3. To give a default region name
1. To interrupt the request if auth version > 2.0 and force user to provide region name in the request
2. To allow the request but shows up a more clear reason about why
3. To give a default region name