Add status/finished to async poller

msrest/polling/async_poller.py

@@ -38,6 +38,12 @@ class AsyncPollingMethod(object):
     async def run(self):
         raise NotImplementedError("This method needs to be implemented")
 
+    def status(self):
+        raise NotImplementedError("This method needs to be implemented")
+
+    def finished(self):
+        raise NotImplementedError("This method needs to be implemented")
+
     def resource(self):
         raise NotImplementedError("This method needs to be implemented")
 

tests/async/test_polling.py

@@ -46,6 +46,12 @@ async def test_abc_polling():
     with pytest.raises(NotImplementedError):
         await abc_polling.run()
 
+    with pytest.raises(NotImplementedError):
+        abc_polling.status()
+
+    with pytest.raises(NotImplementedError):
+        abc_polling.finished()
+
     with pytest.raises(NotImplementedError):
         abc_polling.resource()