code: func (v *Stack) GetChildByName(name string) *Widget {
  	cstr := C.CString(name)
  	defer C.free(unsafe.Pointer(cstr))
  	c := C.gtk_stack_get_child_by_name(v.native(), (*C.gchar)(cstr))
  	if c == nil {
  		return nil
  	}
  	return wrapWidget(glib.Take(unsafe.Pointer(c)))
  }
docs: // GetChildByName is a wrapper around gtk_stack_get_child_by_name().