def copy_element(element: Element) -> ElementCopy:
buffer = {}
def save_func(name, value):
# do not copy Element.presentation, to avoid cyclic dependencies
if name != "presentation":
buffer[name] = serialize(value)
element.save(save_func)
return ElementCopy(cls=element.__class__, id=element.id, data=buffer)
def unlink(self):
self.is_unlinked = True
Element.unlink(self)