code: func BuilderNewFromResource(resourcePath string) (*Builder, error) {
  	cstr := C.CString(resourcePath)
  	defer C.free(unsafe.Pointer(cstr))
  
  	c := C.gtk_builder_new_from_resource((*C.gchar)(cstr))
  	if c == nil {
  		return nil, nilPtrErr
  	}
  
  	obj := glib.Take(unsafe.Pointer(c))
  	return &Builder{obj}, nil
  }
docs: // BuilderNewFromResource is a wrapper around gtk_builder_new_from_resource().