code: def _copy(self, other, copy_func):
          
  
          super(AbstractString, self)._copy(other, copy_func)
          self._unicode = other._unicode
docs: Copies the contents of another AbstractString object to itself
  
          :param object:
              Another instance of the same class
  
          :param copy_func:
              An reference of copy.copy() or copy.deepcopy() to use when copying
              lists, dicts and objects