gtk:list-store-move-before (model iter pos)

model -- a gtk:list-store object
iter -- a gtk:tree-iter iterator
pos -- a gtk:tree-iter iterator, or nil

Moves iter in model to the position before pos. Note that this function only works with unsorted stores. If the pos argument is nil, iter will be moved to the end of the list. The gtk:list-store implementation is deprecated since 4.10. Use the g:list-store object instead.