ListStore.insertBefore

void insertBefore(out gtk.tree_iter.TreeIter iter, gtk.tree_iter.TreeIter sibling = null)

Inserts a new row before sibling. If sibling is null, then the row will be appended to the end of the list. iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call [gtk.list_store.ListStore.set] or [gtk.list_store.ListStore.setValue].

Parameters

`iter`	An unset [gtk.tree_iter.TreeIter] to set to the new row
`sibling`	A valid [gtk.tree_iter.TreeIter]

Deprecated

Use list models