diff --git a/asyncio/README.md b/asyncio/README.md
index f7d2e61..e47a0e7 100644
--- a/asyncio/README.md
+++ b/asyncio/README.md
@@ -1,3 +1,18 @@
+## nest_asyncio
+```python
+def Sync():
+    import asyncio, functools, importlib.util as I
+    I.find_spec('nest_asyncio') or os.system('pip install -q nest_asyncio')
+    __import__('nest_asyncio').apply(); return lambda func: functools.wraps(
+        func)(lambda *args, **kwargs: asyncio.run(func(*args, **kwargs)))
+sync = Sync()
+
+@sync
+async def amain(): print('amain')
+amain()
+```
+
+## threading
 ```python
 import asyncio, threading
 try: