docs: def start_filesystem(mountpoint,
                       config=None):  # pragma: no cover
      """
      prgramatically mount this filesystem to some mount point
      :param mountpoint:
      :param config:
      :return:
      """
      if has_fuse:
          if not config:
              config = BrainStoreConfig()
          FUSE(BrainStore(config), mountpoint, foreground=True)
      else:
          raise ImportError(err_str)