diff --git a/tjnetwork.py b/tjnetwork.py
index 11b2d21..6d7a618 100644
--- a/tjnetwork.py
+++ b/tjnetwork.py
@@ -1086,6 +1086,9 @@ def add_service_area(name: str, cs: ChangeSet) -> ChangeSet:
 def delete_service_area(name: str, cs: ChangeSet) -> ChangeSet:
     return ChangeSet()
 
+def get_all_service_area_ids(name: str) -> list[str]:
+    return []
+
 def get_all_service_areas(name: str) -> list[dict[str, Any]]:
     return []
 
@@ -1115,7 +1118,10 @@ def add_virtual_district(name: str, cs: ChangeSet) -> ChangeSet:
 def delete_virtual_district(name: str, cs: ChangeSet) -> ChangeSet:
     return ChangeSet()
 
-def get_all_virtual_district(name: str) -> list[dict[str, Any]]:
+def get_all_virtual_district_ids(name: str) -> list[str]:
+    return []
+
+def get_all_virtual_districts(name: str) -> list[dict[str, Any]]:
     return []
 
 def generate_virtual_district(name: str, centers: list[str]) -> ChangeSet: