code: def get_admin_detail(self, req):
          
          if ':' not in req.headers.get('x-auth-admin-user', ''):
              return None
          admin_account, admin_user = \
              req.headers.get('x-auth-admin-user').split(':', 1)
          user_json = self.get_user_detail(req, admin_account, admin_user)
          if user_json is None:
              return None
          admin_detail = json.loads(user_json)
          admin_detail['account'] = admin_account
          return admin_detail
docs: Returns the dict for the user specified as the admin in the request
          with the addition of an `account` key set to the admin user's account.
  
          :param req: The swob request to retrieve X-Auth-Admin-User and
                      X-Auth-Admin-Key from.
          :returns: The dict for the admin user with the addition of the
                    `account` key.