code: def from_path(cls, *path, namespace=None):
          
          parent = None
          for i in range(0, len(path), 2):
              parent = cls(*path[i:i + 2], parent=parent, namespace=namespace)
  
          return parent
docs: Build up a Datastore key from a path.
  
          Parameters:
            \*path(tuple[str or int]): The path segments.
            namespace(str): An optional namespace for the key. This is
              applied to each key in the tree.
  
          Returns:
            anom.Key: The Datastore represented by the given path.