docs: def listdir(self, 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
  
  
          '''
  
          authority_name, location = self._normalize_archive_name(
              location,
              authority_name=authority_name)
  
          if authority_name is None:
              authority_name = self.default_authority_name
  
          return self._authorities[authority_name].fs.listdir(location)