docs: def bind_domain_socket(address):
      """Takes (socket path, 0) and returns (socket_object, (path, 0))."""
      path, _ = address
      try:
          os.unlink(path)
      except OSError:
          pass
  
      sock = socket.socket(socket.AF_UNIX)
      sock.bind(path)
      sock.listen(128)
      return sock, (path, 0)