public function removeByRank($start, $end)
    {
        return $this->_getRediskaOn()->deleteFromSortedSetByRank($this->getName(), $start, $end);
    }
public function removeByRank($start, $end)
    {
        return $this->_getRediskaOn()->deleteFromSortedSetByRank($this->getName(), $start, $end);
    }
public function removeByRank ( $ start , $ end ) { return $ this -> _getRediskaOn ( ) -> deleteFromSortedSetByRank ( $ this -> getName ( ) , $ start , $ end ) ; }
Remove all elements in the sorted set at key with rank between start and end

@param numeric $start Start position
@param numeric $end   End position
@return integer
Remove all elements in the sorted set at key with rank between start and end