docs: def get_many(self, uris):
          """
          Simple implementation,
          could be better implemented by backend not hitting db for every uri.
          """
          nodes = {}
  
          for uri in uris:
              try:
                  node = self.get(uri)
              except NodeDoesNotExist:
                  continue
              else:
                  nodes[uri] = node
  
          return nodes