Feature 10911-Vertical scaling of VM instances from OSM

Change-Id: Ie52edb13367a253ed3fc1a434ca2a170803035e4
Signed-off-by: sritharan <priyadarshini@tataelxsi.co.in>
diff --git a/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py b/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py
index a580800..553ec89 100644
--- a/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py
+++ b/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py
@@ -1644,3 +1644,13 @@
         """
         # TODO: Add support for migration
         raise vimconn.VimConnNotImplemented("Not implemented")
+
+    def resize_instance(self, vm_id, flavor_id=None):
+        """
+        resize a vdu
+        param:
+            vm_id: ID of an instance
+            flavor_id: flavor_id to resize the vdu to
+        """
+        # TODO: Add support for resize
+        raise vimconn.VimConnNotImplemented("Not implemented")