docs: def createGroupResponse(self, group, vendorSpecific=None):
          """CNIdentity.createGroup(session, groupName) → Subject
          https://releases.dataone.org/online/api-
          documentation-v2.0.1/apis/CN_APIs.html#CNIdentity.createGroup.
  
          Args:
            group:
            vendorSpecific:
  
          Returns:
  
          """
          mmp_dict = {'group': ('group.xml', group.toxml('utf-8'))}
          return self.POST('groups', fields=mmp_dict, headers=vendorSpecific)