Add dma interface, no implementation

tjnetwork.py

@@ -1032,6 +1032,22 @@ def delete_region(name: str, cs: ChangeSet) -> ChangeSet:
 def calculate_district_metering_area(name: str, nodes: list[str], part_count: int = 1, part_type: int = PARTITION_TYPE_RB) -> list[list[str]]:
     return api.calculate_district_metering_area(name, nodes, part_count, part_type)
 
+def get_district_metering_area_schema(name: str) -> dict[str, dict[str, Any]]:
+    return {}#api.get_district_metering_area_schema(name)
+
+def get_district_metering_area(name: str, id: str) -> dict[str, Any]:
+    return {}#api.get_district_metering_area(name, id)
+
+def set_district_metering_area(name: str, cs: ChangeSet) -> ChangeSet:
+    return ChangeSet()#api.set_district_metering_area(name, cs)
+
+# example: add_district_metering_area(p, ChangeSet({'id': 'r', 'boundary': [(0.0, 0.0), (1.0, 0.0), (1.0, 1.0), (0.0, 0.0)]}))
+def add_district_metering_area(name: str, cs: ChangeSet) -> ChangeSet:
+    return ChangeSet()#api.add_district_metering_area(name, cs)
+
+def delete_district_metering_area(name: str, cs: ChangeSet) -> ChangeSet:
+    return ChangeSet()#api.delete_district_metering_area(name, cs)
+
 
 ############################################################
 # service_area 34