code: public Epic getEpic(Object groupIdOrPath, Integer epicIid) throws GitLabApiException {
          Response response = get(Response.Status.OK, null, "groups", getGroupIdOrPath(groupIdOrPath), "epics", epicIid);
          return (response.readEntity(Epic.class));
      }
docs: Get a single epic for the specified group.
  
  <pre><code>GitLab Endpoint: GET /groups/:id/epics/:epic_iid</code></pre>
  
  @param groupIdOrPath the group ID, path of the group, or a Group instance holding the group ID or path
  @param epicIid the IID of the epic to get
  @return an Epic instance for the specified Epic
  @throws GitLabApiException if any exception occurs