docs: def listdir(ctx, location, authority_name=None):
      '''
      List archive path components at a given location
  
      Note:
  
      When using listdir on versioned archives, listdir will provide the
      version numbers when a full archive path is supplied as the location
      argument. This is because DataFS stores the archive path as a directory
      and the versions as the actual files when versioning is on.
  
      Parameters
      ----------
  
      location : str
  
          Path of the "directory" to search
  
          `location` can be a path relative to the authority root (e.g
          `/MyFiles/Data`) or can include authority as a protocol (e.g.
          `my_auth://MyFiles/Data`). If the authority is specified as a
          protocol, the `authority_name` argument is ignored.
  
      authority_name : str
  
          Name of the authority to search (optional)
  
          If no authority is specified, the default authority is used (if
          only one authority is attached or if
          :py:attr:`DefaultAuthorityName` is assigned).
  
  
      Returns
      -------
  
      list
  
          Archive path components that exist at the given "directory"
          location on the specified authority
  
      Raises
      ------
  
      ValueError
  
          A ValueError is raised if the authority is ambiguous or invalid
      '''
  
      _generate_api(ctx)
  
      for path_component in ctx.obj.api.listdir(
              location,
              authority_name=authority_name):
  
          click.echo(path_component, nl=False)
          print('')