gtk:tree-model-sort-convert-iter-to-child-iter (model iter)

model -- a gtk:tree-model-sort object
iter -- a valid gtk:tree-iter iterator pointing to a row on model

The gtk:tree-iter iterator.

Converts iter to point to a row on model. The gtk:tree-model-sort implementation is deprecated since 4.10. Use the gtk:sort-list-model implementation instead.