docs: def delete(args):
          """Delete NApps from server."""
          mgr = NAppsManager()
          for napp in args['<napp>']:
              mgr.set_napp(*napp)
              LOG.info('Deleting NApp %s from server...', mgr.napp_id)
              try:
                  mgr.delete()
                  LOG.info('  Deleted.')
              except requests.HTTPError as exception:
                  if exception.response.status_code == 405:
                      LOG.error('Delete Napp is not allowed yet.')
                  else:
                      msg = json.loads(exception.response.content)
                      LOG.error('  Server error: %s - ', msg['error'])