gtk/gtk.go
func (v *Entry) SetCompletion(completion *EntryCompletion) {
	C.gtk_entry_set_completion(v.native(), completion.native())
}
func (v *Entry) SetCompletion(completion *EntryCompletion) {
	C.gtk_entry_set_completion(v.native(), completion.native())
}
// SetCompletion() is a wrapper around gtk_entry_set_completion().