c_gtk_tree_model_filter_set_modify_func

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
void function(GtkTreeModelFilter* filter, int nColumns, GType* types, GtkTreeModelFilterModifyFunc func, void* data, GDestroyNotify destroy) c_gtk_tree_model_filter_set_modify_func;

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