Update nest-asyncio/README.md

nest-asyncio/README.md

@@ -1,3 +1,17 @@
+```python
+def sync(obj):
+    import asyncio, nest_asyncio; nest_asyncio.apply()
+    if asyncio.iscoroutine(obj): return asyncio.run(obj)
+    if asyncio.iscoroutinefunction(func := obj):
+        return lambda *args, **kwargs: sync(func(*args, **kwargs))
+    for attr in dir(obj):
+        if asyncio.iscoroutinefunction(method := getattr(obj, attr)):
+            setattr(obj, attr, sync(method))
+    return obj
+async def foo(): return 42
+sync(foo()), sync(foo)()
+```
+
 ```python
 def sync(coro):
     import asyncio, functools