docs: def keys(self):
          """Iterates over the hive's keys.
  
          Yields WinRegKey namedtuples containing:
  
              path: path of the key "RootKey\\Key\\..."
              timestamp: date and time of last modification
              values: list of values (("ValueKey", "ValueType", ValueValue), ... )
  
          """
          for node in self.node_children(self.root()):
              yield from self._visit_registry(node, self._rootkey)