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