code: def server_binary():
      """Return the path to a TensorBoard data server binary, if possible.
  
      Returns:
        A string path on disk, or `None` if there is no binary bundled
        with this package.
      """
      path = os.path.join(os.path.dirname(__file__), "bin", "server")
      if not os.path.exists(path):
          return None
      return path
  
label_desc: Use image node_id 1 for calling a global function with example usage: server_binary() and returns: path, None