code: def _analyst_data(self, ws):
          
          username = ws.getAnalyst()
          return {'username': username,
                  'fullname': to_utf8(self.user_fullname(username)),
                  'email': to_utf8(self.user_email(username))}
docs: Returns a dict that represent the analyst assigned to the
              worksheet.
              Keys: username, fullname, email