code: def add(self, item):
          "Add an item (string) to the filter. Cannot be removed later!"
          for pos in self._hashes(item):
              self.hash |= (2 ** posf add(self, item):
          "Add an item (string) to the filter. Cannot be removed later!"
          for pos in self._hashes(item):
              self.hash |= (2 ** pos)
docs: Add an item (string) to the filter. Cannot be removed later!