docs: async def open_websocket_client(sock: anyio.abc.SocketStream,
                                  addr,
                                  path: str,
                                  headers: Optional[list] = None,
                                  subprotocols: Optional[list] = None):
      """Create a websocket on top of a socket."""
      ws = await create_websocket_client(
          sock, addr=addr, path=path, headers=headers, subprotocols=subprotocols)
      try:
          yield ws
      finally:
          await ws.close()