docs: def get(self, uuid, default=None):
          # type: (UUID, Optional[Path]) -> Optional[Path]
          """Return absolute :class:`Path` object for given uuid, if this uuid
          exists in repository, or `default` if it doesn't.
  
          :param:uuid: :class:`UUID` instance
          """
          path = self.abs_path(uuid)
          if not path.exists():
              return default
          return path