code: def _parse_peer_link(self, config):
          
          match = re.search(r'peer-link (\S+)', config)
          value = match.group(1) if match else None
          return dict(peer_link=value)
docs: Scans the config block and parses the peer-link value
  
          Args:
              config (str): The config block to scan
  
          Returns:
              dict: A dict object that is intended to be merged into the
                  resource dict