docs: def get_abs_sciobj_file_path_by_url(file_url):
      """Get the absolute path to the file holding an object's bytes.
  
      - ``file_url`` is an absolute or relative file:// url as stored in the DB.
  
      """
      assert_sciobj_store_exists()
      m = re.match(r'file://(.*?)/(.*)', file_url, re.IGNORECASE)
      if m.group(1) == RELATIVE_PATH_MAGIC_HOST_STR:
          return os.path.join(get_abs_sciobj_store_path(), m.group(2))
      assert os.path.isabs(m.group(2))
      return m.group(2)