Silly ignorant asyncio usage...

Author: Golf Player

nbclient/util.py

@@ -94,7 +94,7 @@ async def ensure_async(obj):
 def run_hook(hook, *args):
     if hook is None:
         return
-    if inspect.isawaitable(hook):
+    if inspect.iscoroutinefunction(hook):
         future = hook(*args)
     else:
         loop = asyncio.get_event_loop()