code: def copy(self):
          '''Returns a copy of this namespace.
  
          Note: we truly create a copy of the dictionary but keep
                _macros and _blocks.
          '''
          return Namespace(self.dictionary.copy(), self._macros, self._blocksf copy(self):
          '''Returns a copy of this namespace.
  
          Note: we truly create a copy of the dictionary but keep
                _macros and _blocks.
          '''
          return Namespace(self.dictionary.copy(), self._macros, self._blocks)
docs: Returns a copy of this namespace.
  
          Note: we truly create a copy of the dictionary but keep
                _macros and _blocks.