code: public Pager<Group> getGroups(int itemsPerPage) throws GitLabApiException {
          return (new Pager<Group>(this, Group.class, itemsPerPage, null, "groups"));
      }
docs: Get a Pager of groups. (As user: my groups, as admin: all groups)
  
  <pre><code>GitLab Endpoint: GET /groups</code></pre>
  
  @param itemsPerPage the number of Group instances that will be fetched per page
  @return the list of groups viewable by the authenticated user
  @throws GitLabApiException if any exception occurs