docs: public Epic updateEpic(Object groupIdOrPath, Integer epicIid, Epic epic) throws GitLabApiException {
          Form formData = new GitLabApiForm()
                  .withParam("title", epic.getTitle(), true)
                  .withParam("labels", epic.getLabels())
                  .withParam("description", epic.getDescription())
                  .withParam("start_date", epic.getStartDate())
                  .withParam("end_date", epic.getEndDate());
          Response response = put(Response.Status.OK, formData.asMap(),
                  "groups", getGroupIdOrPath(groupIdOrPath), "epics", epicIid);
          return (response.readEntity(Epic.class));
      }