Update

tests/util.py

@@ -0,0 +1,17 @@
+import asyncio
+
+loop = asyncio.new_event_loop()
+
+
+def arun(coro):
+    return loop.run_until_complete(coro)
+
+
+def afor(async_gen):
+    async def _afor(async_gen):
+        l = []
+        async for item in async_gen:
+            l.append(item)
+        return l
+
+    return arun(_afor(async_gen))