code: def _find_remote_bundle(self, ref, remote_service_type='s3'):
          
  
          for r in self.remotes:
  
              if remote_service_type and r.service != remote_service_type:
                  continue
  
              if 'list' not in r.data:
                  continue
  
              for k, v in r.data['list'].items():
                  if ref in v.values():
                      return (r, v['vname'])
  
          return None, None
docs: Locate a bundle, by any reference, among the configured remotes. The routine will
          only look in the cache directory lists stored in the remotes, which must
          be updated to be current.
  
          :param ref:
          :return: (remote,vname) or (None,None) if the ref is not found