code: def create_was_derived_from_relation(self, used_entity_id, used_entity_kind,
                                           generated_entity_id, generated_entity_kind):
          
          data = {
              "used_entity": {
                  "id": used_entity_id,
                  "kind": used_entity_kind
              },
              "generated_entity": {
                  "id": generated_entity_id,
                  "kind": generated_entity_kind
              }
          }
          return self._post("/relations/was_derived_from", data)
docs: Create a was derived from relation.
          :param used_entity_id: str: uuid of the used entity (file_version_id)
          :param used_entity_kind: str: kind of entity ('dds-file')
          :param generated_entity_id: uuid of the generated entity (file_version_id)
          :param generated_entity_kind: str: kind of entity ('dds-file')
          :return: requests.Response containing the successful result