code: def create_payload(self):
          
          payload = super(Subnet, self).create_payload()
          if 'from_' in payload:
              payload['from'] = payload.pop('from_')
          return {u'subnet': payload}
docs: Wrap submitted data within an extra dict.
  
          For more information, see `Bugzilla #1151220
          <https://bugzilla.redhat.com/show_bug.cgi?id=1151220>`_.
  
          In addition, rename the ``from_`` field to ``from``.