code: public BoxRequestsFolder.UpdateSharedFolder getCreateSharedLinkRequest(String id) {
          BoxRequestsFolder.UpdateSharedFolder request = new BoxRequestsFolder.UpdateSharedFolder(id, getFolderInfoUrl(id), mSession)
                  .setAccess(null);
          return request;
      }
docs: Gets a request that creates a shared link for a folder
  
  @param id        id of folder to create shared link for
  @return      request to create a shared link for a folder