code: public List<Epic> getEpics(Object groupIdOrPath) throws GitLabApiException {
          return (getEpics(groupIdOrPath, getDefaultPerPage()).all());
      }
docs: Gets 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
  @return a list of all epics of the requested group and its subgroups
  @throws GitLabApiException if any exception occurs