diff --git a/src/ClientInterface.php b/src/ClientInterface.php
index ed7d8043..f7effd72 100644
--- a/src/ClientInterface.php
+++ b/src/ClientInterface.php
@@ -24,153 +24,153 @@ use Predis\Profile\ProfileInterface;
  * and more friendly interface to ease programming which is described in the
  * following list of methods:
  *
- * @method int    del(array|string $keys)
- * @method string dump($key)
- * @method int    exists($key)
- * @method int    expire($key, $seconds)
- * @method int    expireat($key, $timestamp)
- * @method array  keys($pattern)
- * @method int    move($key, $db)
- * @method mixed  object($subcommand, $key)
- * @method int    persist($key)
- * @method int    pexpire($key, $milliseconds)
- * @method int    pexpireat($key, $timestamp)
- * @method int    pttl($key)
- * @method string randomkey()
- * @method mixed  rename($key, $target)
- * @method int    renamenx($key, $target)
- * @method array  scan($cursor, array $options = null)
- * @method array  sort($key, array $options = null)
- * @method int    ttl($key)
- * @method mixed  type($key)
- * @method int    append($key, $value)
- * @method int    bitcount($key, $start = null, $end = null)
- * @method int    bitop($operation, $destkey, $key)
- * @method array  bitfield($key, $subcommand, ...$subcommandArg)
- * @method int    decr($key)
- * @method int    decrby($key, $decrement)
- * @method string get($key)
- * @method int    getbit($key, $offset)
- * @method string getrange($key, $start, $end)
- * @method string getset($key, $value)
- * @method int    incr($key)
- * @method int    incrby($key, $increment)
- * @method string incrbyfloat($key, $increment)
- * @method array  mget(array $keys)
- * @method mixed  mset(array $dictionary)
- * @method int    msetnx(array $dictionary)
- * @method mixed  psetex($key, $milliseconds, $value)
- * @method mixed  set($key, $value, $expireResolution = null, $expireTTL = null, $flag = null)
- * @method int    setbit($key, $offset, $value)
- * @method int    setex($key, $seconds, $value)
- * @method int    setnx($key, $value)
- * @method int    setrange($key, $offset, $value)
- * @method int    strlen($key)
- * @method int    hdel($key, array $fields)
- * @method int    hexists($key, $field)
- * @method string hget($key, $field)
- * @method array  hgetall($key)
- * @method int    hincrby($key, $field, $increment)
- * @method string hincrbyfloat($key, $field, $increment)
- * @method array  hkeys($key)
- * @method int    hlen($key)
- * @method array  hmget($key, array $fields)
- * @method mixed  hmset($key, array $dictionary)
- * @method array  hscan($key, $cursor, array $options = null)
- * @method int    hset($key, $field, $value)
- * @method int    hsetnx($key, $field, $value)
- * @method array  hvals($key)
- * @method int    hstrlen($key, $field)
- * @method array  blpop(array|string $keys, $timeout)
- * @method array  brpop(array|string $keys, $timeout)
- * @method array  brpoplpush($source, $destination, $timeout)
- * @method string lindex($key, $index)
- * @method int    linsert($key, $whence, $pivot, $value)
- * @method int    llen($key)
- * @method string lpop($key)
- * @method int    lpush($key, array $values)
- * @method int    lpushx($key, $value)
- * @method array  lrange($key, $start, $stop)
- * @method int    lrem($key, $count, $value)
- * @method mixed  lset($key, $index, $value)
- * @method mixed  ltrim($key, $start, $stop)
- * @method string rpop($key)
- * @method string rpoplpush($source, $destination)
- * @method int    rpush($key, array $values)
- * @method int    rpushx($key, $value)
- * @method int    sadd($key, array $members)
- * @method int    scard($key)
- * @method array  sdiff(array|string $keys)
- * @method int    sdiffstore($destination, array|string $keys)
- * @method array  sinter(array|string $keys)
- * @method int    sinterstore($destination, array|string $keys)
- * @method int    sismember($key, $member)
- * @method array  smembers($key)
- * @method int    smove($source, $destination, $member)
- * @method string spop($key, $count = null)
- * @method string srandmember($key, $count = null)
- * @method int    srem($key, $member)
- * @method array  sscan($key, $cursor, array $options = null)
- * @method array  sunion(array|string $keys)
- * @method int    sunionstore($destination, array|string $keys)
- * @method int    zadd($key, array $membersAndScoresDictionary)
- * @method int    zcard($key)
- * @method string zcount($key, $min, $max)
- * @method string zincrby($key, $increment, $member)
- * @method int    zinterstore($destination, array|string $keys, array $options = null)
- * @method array  zrange($key, $start, $stop, array $options = null)
- * @method array  zrangebyscore($key, $min, $max, array $options = null)
- * @method int    zrank($key, $member)
- * @method int    zrem($key, $member)
- * @method int    zremrangebyrank($key, $start, $stop)
- * @method int    zremrangebyscore($key, $min, $max)
- * @method array  zrevrange($key, $start, $stop, array $options = null)
- * @method array  zrevrangebyscore($key, $max, $min, array $options = null)
- * @method int    zrevrank($key, $member)
- * @method int    zunionstore($destination, array|string $keys, array $options = null)
- * @method string zscore($key, $member)
- * @method array  zscan($key, $cursor, array $options = null)
- * @method array  zrangebylex($key, $start, $stop, array $options = null)
- * @method array  zrevrangebylex($key, $start, $stop, array $options = null)
- * @method int    zremrangebylex($key, $min, $max)
- * @method int    zlexcount($key, $min, $max)
- * @method int    pfadd($key, array $elements)
- * @method mixed  pfmerge($destinationKey, array|string $sourceKeys)
- * @method int    pfcount(array|string $keys)
- * @method mixed  pubsub($subcommand, $argument)
- * @method int    publish($channel, $message)
- * @method mixed  discard()
- * @method array  exec()
- * @method mixed  multi()
- * @method mixed  unwatch()
- * @method mixed  watch($key)
- * @method mixed  eval($script, $numkeys, $keyOrArg1 = null, $keyOrArgN = null)
- * @method mixed  evalsha($script, $numkeys, $keyOrArg1 = null, $keyOrArgN = null)
- * @method mixed  script($subcommand, $argument = null)
- * @method mixed  auth($password)
- * @method string echo($message)
- * @method mixed  ping($message = null)
- * @method mixed  select($database)
- * @method mixed  bgrewriteaof()
- * @method mixed  bgsave()
- * @method mixed  client($subcommand, $argument = null)
- * @method mixed  config($subcommand, $argument = null)
- * @method int    dbsize()
- * @method mixed  flushall()
- * @method mixed  flushdb()
- * @method array  info($section = null)
- * @method int    lastsave()
- * @method mixed  save()
- * @method mixed  slaveof($host, $port)
- * @method mixed  slowlog($subcommand, $argument = null)
- * @method array  time()
- * @method array  command()
- * @method int    geoadd($key, $longitude, $latitude, $member)
- * @method array  geohash($key, array $members)
- * @method array  geopos($key, array $members)
- * @method string geodist($key, $member1, $member2, $unit = null)
- * @method array  georadius($key, $longitude, $latitude, $radius, $unit, array $options = null)
- * @method array  georadiusbymember($key, $member, $radius, $unit, array $options = null)
+ * @method int         del(array|string $keys)
+ * @method string|null dump($key)
+ * @method int         exists($key)
+ * @method int         expire($key, $seconds)
+ * @method int         expireat($key, $timestamp)
+ * @method array       keys($pattern)
+ * @method int         move($key, $db)
+ * @method mixed       object($subcommand, $key)
+ * @method int         persist($key)
+ * @method int         pexpire($key, $milliseconds)
+ * @method int         pexpireat($key, $timestamp)
+ * @method int         pttl($key)
+ * @method string|null randomkey()
+ * @method mixed       rename($key, $target)
+ * @method int         renamenx($key, $target)
+ * @method array       scan($cursor, array $options = null)
+ * @method array       sort($key, array $options = null)
+ * @method int         ttl($key)
+ * @method mixed       type($key)
+ * @method int         append($key, $value)
+ * @method int         bitcount($key, $start = null, $end = null)
+ * @method int         bitop($operation, $destkey, $key)
+ * @method array       bitfield($key, $subcommand, ...$subcommandArg)
+ * @method int         decr($key)
+ * @method int         decrby($key, $decrement)
+ * @method string|null get($key)
+ * @method int         getbit($key, $offset)
+ * @method string      getrange($key, $start, $end)
+ * @method string|null getset($key, $value)
+ * @method int         incr($key)
+ * @method int         incrby($key, $increment)
+ * @method string      incrbyfloat($key, $increment)
+ * @method array       mget(array $keys)
+ * @method mixed       mset(array $dictionary)
+ * @method int         msetnx(array $dictionary)
+ * @method mixed       psetex($key, $milliseconds, $value)
+ * @method mixed       set($key, $value, $expireResolution = null, $expireTTL = null, $flag = null)
+ * @method int         setbit($key, $offset, $value)
+ * @method int         setex($key, $seconds, $value)
+ * @method int         setnx($key, $value)
+ * @method int         setrange($key, $offset, $value)
+ * @method int         strlen($key)
+ * @method int         hdel($key, array $fields)
+ * @method int         hexists($key, $field)
+ * @method string|null hget($key, $field)
+ * @method array       hgetall($key)
+ * @method int         hincrby($key, $field, $increment)
+ * @method string      hincrbyfloat($key, $field, $increment)
+ * @method array       hkeys($key)
+ * @method int         hlen($key)
+ * @method array       hmget($key, array $fields)
+ * @method mixed       hmset($key, array $dictionary)
+ * @method array       hscan($key, $cursor, array $options = null)
+ * @method int         hset($key, $field, $value)
+ * @method int         hsetnx($key, $field, $value)
+ * @method array       hvals($key)
+ * @method int         hstrlen($key, $field)
+ * @method array|null  blpop(array|string $keys, $timeout)
+ * @method array|null  brpop(array|string $keys, $timeout)
+ * @method array|null  brpoplpush($source, $destination, $timeout)
+ * @method string|null lindex($key, $index)
+ * @method int         linsert($key, $whence, $pivot, $value)
+ * @method int         llen($key)
+ * @method string|null lpop($key)
+ * @method int         lpush($key, array $values)
+ * @method int         lpushx($key, $value)
+ * @method array       lrange($key, $start, $stop)
+ * @method int         lrem($key, $count, $value)
+ * @method mixed       lset($key, $index, $value)
+ * @method mixed       ltrim($key, $start, $stop)
+ * @method string|null rpop($key)
+ * @method string|null rpoplpush($source, $destination)
+ * @method int         rpush($key, array $values)
+ * @method int         rpushx($key, $value)
+ * @method int         sadd($key, array $members)
+ * @method int         scard($key)
+ * @method array       sdiff(array|string $keys)
+ * @method int         sdiffstore($destination, array|string $keys)
+ * @method array       sinter(array|string $keys)
+ * @method int         sinterstore($destination, array|string $keys)
+ * @method int         sismember($key, $member)
+ * @method array       smembers($key)
+ * @method int         smove($source, $destination, $member)
+ * @method string|null spop($key, $count = null)
+ * @method string|null srandmember($key, $count = null)
+ * @method int         srem($key, $member)
+ * @method array       sscan($key, $cursor, array $options = null)
+ * @method array       sunion(array|string $keys)
+ * @method int         sunionstore($destination, array|string $keys)
+ * @method int         zadd($key, array $membersAndScoresDictionary)
+ * @method int         zcard($key)
+ * @method string      zcount($key, $min, $max)
+ * @method string      zincrby($key, $increment, $member)
+ * @method int         zinterstore($destination, array|string $keys, array $options = null)
+ * @method array       zrange($key, $start, $stop, array $options = null)
+ * @method array       zrangebyscore($key, $min, $max, array $options = null)
+ * @method int|null    zrank($key, $member)
+ * @method int         zrem($key, $member)
+ * @method int         zremrangebyrank($key, $start, $stop)
+ * @method int         zremrangebyscore($key, $min, $max)
+ * @method array       zrevrange($key, $start, $stop, array $options = null)
+ * @method array       zrevrangebyscore($key, $max, $min, array $options = null)
+ * @method int|null    zrevrank($key, $member)
+ * @method int         zunionstore($destination, array|string $keys, array $options = null)
+ * @method string|null zscore($key, $member)
+ * @method array       zscan($key, $cursor, array $options = null)
+ * @method array       zrangebylex($key, $start, $stop, array $options = null)
+ * @method array       zrevrangebylex($key, $start, $stop, array $options = null)
+ * @method int         zremrangebylex($key, $min, $max)
+ * @method int         zlexcount($key, $min, $max)
+ * @method int         pfadd($key, array $elements)
+ * @method mixed       pfmerge($destinationKey, array|string $sourceKeys)
+ * @method int         pfcount(array|string $keys)
+ * @method mixed       pubsub($subcommand, $argument)
+ * @method int         publish($channel, $message)
+ * @method mixed       discard()
+ * @method array       exec()
+ * @method mixed       multi()
+ * @method mixed       unwatch()
+ * @method mixed       watch($key)
+ * @method mixed       eval($script, $numkeys, $keyOrArg1 = null, $keyOrArgN = null)
+ * @method mixed       evalsha($script, $numkeys, $keyOrArg1 = null, $keyOrArgN = null)
+ * @method mixed       script($subcommand, $argument = null)
+ * @method mixed       auth($password)
+ * @method string      echo($message)
+ * @method mixed       ping($message = null)
+ * @method mixed       select($database)
+ * @method mixed       bgrewriteaof()
+ * @method mixed       bgsave()
+ * @method mixed       client($subcommand, $argument = null)
+ * @method mixed       config($subcommand, $argument = null)
+ * @method int         dbsize()
+ * @method mixed       flushall()
+ * @method mixed       flushdb()
+ * @method array       info($section = null)
+ * @method int         lastsave()
+ * @method mixed       save()
+ * @method mixed       slaveof($host, $port)
+ * @method mixed       slowlog($subcommand, $argument = null)
+ * @method array       time()
+ * @method array       command()
+ * @method int         geoadd($key, $longitude, $latitude, $member)
+ * @method array       geohash($key, array $members)
+ * @method array       geopos($key, array $members)
+ * @method string      geodist($key, $member1, $member2, $unit = null)
+ * @method array       georadius($key, $longitude, $latitude, $radius, $unit, array $options = null)
+ * @method array       georadiusbymember($key, $member, $radius, $unit, array $options = null)
  *
  * @author Daniele Alessandri <suppakilla@gmail.com>
  */