Add batch change set for set demand

api/operation.py

@@ -49,6 +49,13 @@ class SqlChangeSet:
         self.redo_cs = redo_cs
         self.undo_cs = undo_cs
 
+class BatchSqlChangeSet:
+    def __init__(self, redo_sql: str, undo_sql: str, redo_cs: list[dict[str, str]], undo_cs: list[dict[str, str]]) -> None:
+        self.redo_sql = redo_sql
+        self.undo_sql = undo_sql
+        self.redo_cs = redo_cs
+        self.undo_cs = undo_cs
+
 
 def read(name: str, sql: str) -> Row:
     with conn[name].cursor(row_factory=dict_row) as cur: