diff --git a/nicohack202002/uncloud/uncloud_api/management/commands/snapshot.py b/nicohack202002/uncloud/uncloud_api/management/commands/snapshot.py
index 41d0e38..1a021aa 100644
--- a/nicohack202002/uncloud/uncloud_api/management/commands/snapshot.py
+++ b/nicohack202002/uncloud/uncloud_api/management/commands/snapshot.py
@@ -16,6 +16,13 @@ class Command(BaseCommand):
         print("Snapshotting")
         #getattr(self, options['command'])(**options)
 
+
+    def get_disks_of_vm(self, vmuuid):
+        """ Returns the disks used by a VM in the format
+        ( ceph_name, size )
+        """
+        pass
+
     @classmethod
     def monitor(cls, **_):
         while True: