docs: def reparse(self):
          '''Reparse all children of this directory.
  
          This effectively rebuilds the tree below this node.
  
          This operation takes an unbounded time to complete; if there are a lot
          of objects registered below this directory's context, they will all
          need to be parsed.
  
          '''
          self._remove_all_children()
          self._parse_context(self._context, self.orb)