diff --git a/README.md b/README.md
index ca8e1ca..7103475 100644
--- a/README.md
+++ b/README.md
@@ -8,4 +8,13 @@ source "$HOME/.${SHELL##*/}rc"
 ```py
 __import__('concurrent').futures.ThreadPoolExecutor().submit(
    lambda x: (print(x * 2) or x ** 2 / 0), 3).result()
+```
+
+## zmq.REQ
+```py
+def File(blob):
+   try: import zmq; File.sock.send_pyobj(blob); return File.sock.recv_pyobj()
+   except (AttributeError, zmq.Again):
+      (sock := zmq.Context().socket(zmq.REQ)).connect('tcp://localhost:6106')
+      sock.RCVTIMEO = 1000; File.sock = sock; return File(blob)
 ```
\ No newline at end of file