def create_subtree(self, paths):
node = self._parent.root
assert isinstance(paths, list)
assert isinstance(node, Tree)
last = None
while True:
last, failed_resource = node.find_complete_last(paths)
if failed_resource is None:
break
resource = Resource(name="subtree", visible=True, observable=False, allow_children=True)
method = getattr(resource, "new_resource", None)
resource = method()
resource.payload = None
resource.path = failed_resource
last.add_child(resource)
return last
