code: def _check_lookup_prop(self, req_id):
          
          if self._lookup_prop:
              if not req_id and self._lookup_prop == "id":
                  return False
          else:
              if req_id:
                  self._lookup_prop = "id"
              else:
                  self._lookup_prop = "name"
          return True
docs: Checks that selected lookup property can be used for this testcase.