unexpected status code returned for DocuSignClient.add_envelope_recipients

[smcoll]

Apparently, an add_envelope_recipients request returns a 201 response [edit: in v2 of the API] , yet the client is expecting a 200. An exception is raised:

DocuSignException: DocuSign request failed: POST https://demo.docusign.net/restapi/v2/accounts/<account>/envelopes/<envelope>/recipients returned code 201 while expecting code 200; Message: {...}

Should we be setting expected_status_code=201 in just the post for that method, or should we set that in the post method itself?