code: def remove_range(self, start, end):
          '''Remove a range by score.
          '''
          return self._sl.remove_range(
              start, end, callback=lambda sc, value: self._dict.pop(value)f remove_range(self, start, end):
          '''Remove a range by score.
          '''
          return self._sl.remove_range(
              start, end, callback=lambda sc, value: self._dict.pop(value))
docs: Remove a range by score.