def save_nodes_to_datastore(self, nodes):
futures = []
for slug, node in nodes.items():
persist_node = Node.get_by_slug(node.slug)
if not persist_node:
node_obj = node
else:
node_obj = persist_node
node_obj.update_from_dict(node.to_dict())
futures.append(node_obj.put_async())
return futures
