SHEGBK4HP2KVIXQBVLD2E4XUEFEB3V7KFKVC7HY65TIUTL5YOH7QC
7SFHSB47KC6YH737DJPYYVONCFGEHC2Z37RCVPJO6I5PHEOLK74AC
Z4XRNDTRTGSZHNB65WNHOVUBFW4QWQABLVSK4RM3QJHGK33DMRJAC
OTIBCAUJ3KDQJLVDN3A536DLZGNRYMGJLORZVR3WLCGXGO6UGO6AC
BYG5CEMVXANDTBI2ORNVMEY6K3EBRIHZHS4QBK27VONJC5537COQC
local before = snapshot(Lines.current_drawing_index)
record_undo_event({before=before, after=snapshot(Lines.current_drawing_index)})