method ListSnapshots config-name
-method GetSnapshots config-name number
+method GetSnapshot config-name number
method CreateSingleSnapshot config-name description cleanup userdata -> number
method CreatePreSnapshot config-name pre-number description cleanup userdata -> number
method SetUndo config-name number1 number2 list(filename undo)
method SetUndoAll config-name number1 number2 bool
-method GetUndoStatistic config-name number1 number2
-method UndoChange config-name number1 number2
+method GetUndoSteps config-name number1 number2
+method DoUndoStep config-name number1 number2 undo_step
Filenames do not include the subvolume.