docs: def beacon(config):
      '''
      Watch the configured directories
  
      Example Config
  
      .. code-block:: yaml
  
          beacons:
            watchdog:
              - directories:
                  /path/to/dir:
                    mask:
                      - create
                      - modify
                      - delete
                      - move
  
      The mask list can contain the following events (the default mask is create,
      modify delete, and move):
      * create  - File or directory is created in watched directory
      * modify  - The watched directory is modified
      * delete  - File or directory is deleted from watched directory
      * move    - File or directory is moved or renamed in the watched directory
      '''
  
      _config = {}
      list(map(_config.update, config))
  
      queue = _get_queue(_config)
  
      ret = []
      while queue:
          ret.append(to_salt_event(queue.popleft()))
  
      return ret