diff --git a/modules/aeolus/aeolus_amv.py b/modules/aeolus/aeolus_amv.py
index 6d94e4aa21fdd9b2321f74c7058c2064ce96e120..a6fed882da198df332ede9a22b9a861b845ac11d 100644
--- a/modules/aeolus/aeolus_amv.py
+++ b/modules/aeolus/aeolus_amv.py
@@ -61,6 +61,12 @@ class AMVFiles:
     def get_parameters(self):
         pass
 
+    def get_out_parameters(self):
+        pass
+
+    def get_meta_dict(self):
+        pass
+
 
 class Framework(AMVFiles):
     def __init__(self, files_path, file_time_span, band='14'):