code: public Pager<Epic> getEpics(Object groupIdOrPath, int itemsPerPage) throws GitLabApiException {
          return (new Pager<Epic>(this, Epic.class, itemsPerPage, null, "groups", getGroupIdOrPath(groupIdOrPath), "epics"));
      }
docs: Get a Pager of all epics of the requested group and its subgroups.
  
  <pre><code>GitLab Endpoint: GET /groups/:id/epics</code></pre>
  
  @param groupIdOrPath the group ID, path of the group, or a Group instance holding the group ID or path
  @param itemsPerPage the number of issues per page
  @return the Pager of all epics of the requested group and its subgroups
  @throws GitLabApiException if any exception occurs