diff --git a/.phan/internal_stubs/redis.phan_php b/.phan/internal_stubs/redis.phan_php
index 29efb477367..4f58036bf54 100644
--- a/.phan/internal_stubs/redis.phan_php
+++ b/.phan/internal_stubs/redis.phan_php
@@ -1,6 +1,6 @@
 <?php
 // These stubs were generated by the phan stub generator.
-// @phan-stub-for-extension redis@3.1.1
+// @phan-stub-for-extension redis@5.1.1
 
 namespace {
 class Redis {
@@ -12,15 +12,21 @@ class Redis {
     const REDIS_LIST = 3;
     const REDIS_ZSET = 4;
     const REDIS_HASH = 5;
+    const REDIS_STREAM = 6;
     const PIPELINE = 2;
     const ATOMIC = 0;
     const MULTI = 1;
     const OPT_SERIALIZER = 1;
     const OPT_PREFIX = 2;
     const OPT_READ_TIMEOUT = 3;
+    const OPT_TCP_KEEPALIVE = 6;
+    const OPT_COMPRESSION = 7;
+    const OPT_REPLY_LITERAL = 8;
+    const OPT_COMPRESSION_LEVEL = 9;
     const SERIALIZER_NONE = 0;
     const SERIALIZER_PHP = 1;
-    const SERIALIZER_IGBINARY = 2;
+    const SERIALIZER_JSON = 4;
+    const COMPRESSION_NONE = 0;
     const OPT_SCAN = 4;
     const SCAN_RETRY = 1;
     const SCAN_NORETRY = 0;
@@ -30,248 +36,272 @@ class Redis {
     // methods
     public function __construct() {}
     public function __destruct() {}
-    public function connect() {}
-    public function pconnect() {}
-    public function close() {}
-    public function ping() {}
-    public function echo() {}
-    public function get() {}
-    public function set() {}
-    public function setex() {}
-    public function psetex() {}
-    public function setnx() {}
-    public function getSet() {}
-    public function randomKey() {}
-    public function renameKey() {}
-    public function renameNx() {}
-    public function getMultiple() {}
-    public function exists() {}
-    public function delete() {}
-    public function incr() {}
-    public function incrBy() {}
-    public function incrByFloat() {}
-    public function decr() {}
-    public function decrBy() {}
-    public function type() {}
-    public function append() {}
-    public function getRange() {}
-    public function setRange() {}
-    public function getBit() {}
-    public function setBit() {}
-    public function strlen() {}
-    public function getKeys() {}
-    public function sort() {}
-    public function sortAsc() {}
-    public function sortAscAlpha() {}
-    public function sortDesc() {}
-    public function sortDescAlpha() {}
-    public function lPush() {}
-    public function rPush() {}
-    public function lPushx() {}
-    public function rPushx() {}
-    public function lPop() {}
-    public function rPop() {}
-    public function blPop() {}
-    public function brPop() {}
-    public function lSize() {}
-    public function lRemove() {}
-    public function listTrim() {}
-    public function lGet() {}
-    public function lGetRange() {}
-    public function lSet() {}
-    public function lInsert() {}
-    public function sAdd() {}
-    public function sAddArray() {}
-    public function sSize() {}
-    public function sRemove() {}
-    public function sMove() {}
-    public function sPop() {}
-    public function sRandMember() {}
-    public function sContains() {}
-    public function sMembers() {}
-    public function sInter() {}
-    public function sInterStore() {}
-    public function sUnion() {}
-    public function sUnionStore() {}
-    public function sDiff() {}
-    public function sDiffStore() {}
-    public function setTimeout() {}
-    public function save() {}
+    public function _prefix($key) {}
+    public function _serialize($value) {}
+    public function _unserialize($value) {}
+    public function append($key, $value) {}
+    public function auth($password) {}
     public function bgSave() {}
-    public function lastSave() {}
-    public function flushDB() {}
-    public function flushAll() {}
-    public function dbSize() {}
-    public function auth() {}
-    public function ttl() {}
-    public function pttl() {}
-    public function persist() {}
-    public function info() {}
-    public function select() {}
-    public function move() {}
     public function bgrewriteaof() {}
-    public function slaveof() {}
-    public function object() {}
-    public function bitop() {}
-    public function bitcount() {}
-    public function bitpos() {}
-    public function mset() {}
-    public function msetnx() {}
-    public function rpoplpush() {}
-    public function brpoplpush() {}
-    public function zAdd() {}
-    public function zDelete() {}
-    public function zRange() {}
-    public function zRevRange() {}
-    public function zRangeByScore() {}
-    public function zRevRangeByScore() {}
-    public function zRangeByLex() {}
-    public function zRevRangeByLex() {}
-    public function zLexCount() {}
-    public function zRemRangeByLex() {}
-    public function zCount() {}
-    public function zDeleteRangeByScore() {}
-    public function zDeleteRangeByRank() {}
-    public function zCard() {}
-    public function zScore() {}
-    public function zRank() {}
-    public function zRevRank() {}
-    public function zInter() {}
-    public function zUnion() {}
-    public function zIncrBy() {}
-    public function expireAt() {}
-    public function pexpire() {}
-    public function pexpireAt() {}
-    public function hGet() {}
-    public function hSet() {}
-    public function hSetNx() {}
-    public function hDel() {}
-    public function hLen() {}
-    public function hKeys() {}
-    public function hVals() {}
-    public function hGetAll() {}
-    public function hExists() {}
-    public function hIncrBy() {}
-    public function hIncrByFloat() {}
-    public function hMset() {}
-    public function hMget() {}
-    public function multi() {}
-    public function discard() {}
-    public function exec() {}
-    public function pipeline() {}
-    public function watch() {}
-    public function unwatch() {}
-    public function publish() {}
-    public function subscribe() {}
-    public function psubscribe() {}
-    public function unsubscribe() {}
-    public function punsubscribe() {}
-    public function time() {}
-    public function role() {}
-    public function eval() {}
-    public function evalsha() {}
-    public function script() {}
-    public function debug() {}
-    public function dump() {}
-    public function restore() {}
-    public function migrate() {}
-    public function getLastError() {}
+    public function bitcount($key) {}
+    public function bitop($operation, $ret_key, $key, ...$other_keys) {}
+    public function bitpos($key, $bit, $start = null, $end = null) {}
+    public function blPop($key, $timeout_or_key, ...$extra_args) {}
+    public function brPop($key, $timeout_or_key, ...$extra_args) {}
+    public function brpoplpush($src, $dst, $timeout) {}
+    public function bzPopMax($key, $timeout_or_key, ...$extra_args) {}
+    public function bzPopMin($key, $timeout_or_key, ...$extra_args) {}
     public function clearLastError() {}
-    public function _prefix() {}
-    public function _serialize() {}
-    public function _unserialize() {}
-    public function client() {}
-    public function command() {}
-    public function scan(&$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function hscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function zscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function sscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function pfadd() {}
-    public function pfcount() {}
-    public function pfmerge() {}
-    public function getOption() {}
-    public function setOption() {}
-    public function config() {}
-    public function slowlog() {}
-    public function rawcommand() {}
-    public function geoadd() {}
-    public function geohash() {}
-    public function geopos() {}
-    public function geodist() {}
-    public function georadius() {}
-    public function georadiusbymember() {}
-    public function getHost() {}
-    public function getPort() {}
-    public function getDBNum() {}
-    public function getTimeout() {}
-    public function getReadTimeout() {}
-    public function getPersistentID() {}
+    public function client($cmd, ...$args) {}
+    public function close() {}
+    public function command(...$args) {}
+    public function config($cmd, $key, $value = null) {}
+    public function connect($host, $port = null, $timeout = null, $retry_interval = null) {}
+    public function dbSize() {}
+    public function debug($key) {}
+    public function decr($key) {}
+    public function decrBy($key, $value) {}
+    public function del($key, ...$other_keys) {}
+    public function discard() {}
+    public function dump($key) {}
+    public function echo($msg) {}
+    public function eval($script, $args = null, $num_keys = null) {}
+    public function evalsha($script_sha, $args = null, $num_keys = null) {}
+    public function exec() {}
+    public function exists($key, ...$other_keys) {}
+    public function expire($key, $timeout) {}
+    public function expireAt($key, $timestamp) {}
+    public function flushAll($async = null) {}
+    public function flushDB($async = null) {}
+    public function geoadd($key, $lng, $lat, $member, ...$other_triples) {}
+    public function geodist($key, $src, $dst, $unit = null) {}
+    public function geohash($key, $member, ...$other_members) {}
+    public function geopos($key, $member, ...$other_members) {}
+    public function georadius($key, $lng, $lan, $radius, $unit, array $opts = null) {}
+    public function georadius_ro($key, $lng, $lan, $radius, $unit, array $opts = null) {}
+    public function georadiusbymember($key, $member, $radius, $unit, array $opts = null) {}
+    public function georadiusbymember_ro($key, $member, $radius, $unit, array $opts = null) {}
+    public function get($key) {}
     public function getAuth() {}
-    public function isConnected() {}
+    public function getBit($key, $offset) {}
+    public function getDBNum() {}
+    public function getHost() {}
+    public function getLastError() {}
     public function getMode() {}
-    public function wait() {}
-    public function pubsub() {}
-    public function open() {}
-    public function popen() {}
-    public function lLen() {}
-    public function sGetMembers() {}
-    public function mget() {}
-    public function expire() {}
-    public function zunionstore() {}
-    public function zinterstore() {}
-    public function zRemove() {}
-    public function zRem() {}
-    public function zRemoveRangeByScore() {}
-    public function zRemRangeByScore() {}
-    public function zRemRangeByRank() {}
-    public function zSize() {}
-    public function substr() {}
-    public function rename() {}
-    public function del() {}
-    public function keys() {}
-    public function lrem() {}
-    public function ltrim() {}
-    public function lindex() {}
-    public function lrange() {}
-    public function scard() {}
-    public function srem() {}
-    public function sismember() {}
-    public function zReverseRange() {}
-    public function sendEcho() {}
-    public function evaluate() {}
-    public function evaluateSha() {}
+    public function getOption($option) {}
+    public function getPersistentID() {}
+    public function getPort() {}
+    public function getRange($key, $start, $end) {}
+    public function getReadTimeout() {}
+    public function getSet($key, $value) {}
+    public function getTimeout() {}
+    public function hDel($key, $member, ...$other_members) {}
+    public function hExists($key, $member) {}
+    public function hGet($key, $member) {}
+    public function hGetAll($key) {}
+    public function hIncrBy($key, $member, $value) {}
+    public function hIncrByFloat($key, $member, $value) {}
+    public function hKeys($key) {}
+    public function hLen($key) {}
+    public function hMget($key, array $keys) {}
+    public function hMset($key, array $pairs) {}
+    public function hSet($key, $member, $value) {}
+    public function hSetNx($key, $member, $value) {}
+    public function hStrLen($key, $member) {}
+    public function hVals($key) {}
+    public function hscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function incr($key) {}
+    public function incrBy($key, $value) {}
+    public function incrByFloat($key, $value) {}
+    public function info($option = null) {}
+    public function isConnected() {}
+    public function keys($pattern) {}
+    public function lInsert($key, $position, $pivot, $value) {}
+    public function lLen($key) {}
+    public function lPop($key) {}
+    public function lPush($key, $value) {}
+    public function lPushx($key, $value) {}
+    public function lSet($key, $index, $value) {}
+    public function lastSave() {}
+    public function lindex($key, $index) {}
+    public function lrange($key, $start, $end) {}
+    public function lrem($key, $value, $count) {}
+    public function ltrim($key, $start, $stop) {}
+    public function mget(array $keys) {}
+    public function migrate($host, $port, $key, $db, $timeout, $copy = null, $replace = null) {}
+    public function move($key, $dbindex) {}
+    public function mset(array $pairs) {}
+    public function msetnx(array $pairs) {}
+    public function multi($mode = null) {}
+    public function object($field, $key) {}
+    public function pconnect($host, $port = null, $timeout = null) {}
+    public function persist($key) {}
+    public function pexpire($key, $timestamp) {}
+    public function pexpireAt($key, $timestamp) {}
+    public function pfadd($key, array $elements) {}
+    public function pfcount($key) {}
+    public function pfmerge($dstkey, array $keys) {}
+    public function ping() {}
+    public function pipeline() {}
+    public function psetex($key, $expire, $value) {}
+    public function psubscribe(array $patterns, $callback) {}
+    public function pttl($key) {}
+    public function publish($channel, $message) {}
+    public function pubsub($cmd, ...$args) {}
+    public function punsubscribe($pattern, ...$other_patterns) {}
+    public function rPop($key) {}
+    public function rPush($key, $value) {}
+    public function rPushx($key, $value) {}
+    public function randomKey() {}
+    public function rawcommand($cmd, ...$args) {}
+    public function rename($key, $newkey) {}
+    public function renameNx($key, $newkey) {}
+    public function restore($ttl, $key, $value) {}
+    public function role() {}
+    public function rpoplpush($src, $dst) {}
+    public function sAdd($key, $value) {}
+    public function sAddArray($key, array $options) {}
+    public function sDiff($key, ...$other_keys) {}
+    public function sDiffStore($dst, $key, ...$other_keys) {}
+    public function sInter($key, ...$other_keys) {}
+    public function sInterStore($dst, $key, ...$other_keys) {}
+    public function sMembers($key) {}
+    public function sMove($src, $dst, $value) {}
+    public function sPop($key) {}
+    public function sRandMember($key, $count = null) {}
+    public function sUnion($key, ...$other_keys) {}
+    public function sUnionStore($dst, $key, ...$other_keys) {}
+    public function save() {}
+    public function scan(&$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function scard($key) {}
+    public function script($cmd, ...$args) {}
+    public function select($dbindex) {}
+    public function set($key, $value, $opts = null) {}
+    public function setBit($key, $offset, $value) {}
+    public function setOption($option, $value) {}
+    public function setRange($key, $offset, $value) {}
+    public function setex($key, $expire, $value) {}
+    public function setnx($key, $value) {}
+    public function sismember($key, $value) {}
+    public function slaveof($host = null, $port = null) {}
+    public function slowlog($arg, $option = null) {}
+    public function sort($key, array $options = null) {}
+    public function sortAsc($key, $pattern = null, $get = null, $start = null, $end = null, $getList = null) {}
+    public function sortAscAlpha($key, $pattern = null, $get = null, $start = null, $end = null, $getList = null) {}
+    public function sortDesc($key, $pattern = null, $get = null, $start = null, $end = null, $getList = null) {}
+    public function sortDescAlpha($key, $pattern = null, $get = null, $start = null, $end = null, $getList = null) {}
+    public function srem($key, $member, ...$other_members) {}
+    public function sscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function strlen($key) {}
+    public function subscribe(array $channels, $callback) {}
+    public function swapdb($srcdb, $dstdb) {}
+    public function time() {}
+    public function ttl($key) {}
+    public function type($key) {}
+    public function unlink($key, ...$other_keys) {}
+    public function unsubscribe($channel, ...$other_channels) {}
+    public function unwatch() {}
+    public function wait($numslaves, $timeout) {}
+    public function watch($key, ...$other_keys) {}
+    public function xack($str_key, $str_group, array $arr_ids) {}
+    public function xadd($str_key, $str_id, array $arr_fields, $i_maxlen = null, $boo_approximate = null) {}
+    public function xclaim($str_key, $str_group, $str_consumer, $i_min_idle, array $arr_ids, array $arr_opts = null) {}
+    public function xdel($str_key, array $arr_ids) {}
+    public function xgroup($str_operation, $str_key = null, $str_arg1 = null, $str_arg2 = null, $str_arg3 = null) {}
+    public function xinfo($str_cmd, $str_key = null, $str_group = null) {}
+    public function xlen($key) {}
+    public function xpending($str_key, $str_group, $str_start = null, $str_end = null, $i_count = null, $str_consumer = null) {}
+    public function xrange($str_key, $str_start, $str_end, $i_count = null) {}
+    public function xread(array $arr_streams, $i_count = null, $i_block = null) {}
+    public function xreadgroup($str_group, $str_consumer, array $arr_streams, $i_count = null, $i_block = null) {}
+    public function xrevrange($str_key, $str_start, $str_end, $i_count = null) {}
+    public function xtrim($str_key, $i_maxlen, $boo_approximate = null) {}
+    public function zAdd($key, $score, $value) {}
+    public function zCard($key) {}
+    public function zCount($key, $min, $max) {}
+    public function zIncrBy($key, $value, $member) {}
+    public function zLexCount($key, $min, $max) {}
+    public function zPopMax($key) {}
+    public function zPopMin($key) {}
+    public function zRange($key, $start, $end, $scores = null) {}
+    public function zRangeByLex($key, $min, $max, $offset = null, $limit = null) {}
+    public function zRangeByScore($key, $start, $end, array $options = null) {}
+    public function zRank($key, $member) {}
+    public function zRem($key, $member, ...$other_members) {}
+    public function zRemRangeByLex($key, $min, $max) {}
+    public function zRemRangeByRank($key, $start, $end) {}
+    public function zRemRangeByScore($key, $min, $max) {}
+    public function zRevRange($key, $start, $end, $scores = null) {}
+    public function zRevRangeByLex($key, $min, $max, $offset = null, $limit = null) {}
+    public function zRevRangeByScore($key, $start, $end, array $options = null) {}
+    public function zRevRank($key, $member) {}
+    public function zScore($key, $member) {}
+    public function zinterstore($key, array $keys, ?array $weights = null, $aggregate = null) {}
+    public function zscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function zunionstore($key, array $keys, ?array $weights = null, $aggregate = null) {}
+    public function delete($key, ...$other_keys) {}
+    public function evaluate($script, $args = null, $num_keys = null) {}
+    public function evaluateSha($script_sha, $args = null, $num_keys = null) {}
+    public function getKeys($pattern) {}
+    public function getMultiple(array $keys) {}
+    public function lGet($key, $index) {}
+    public function lGetRange($key, $start, $end) {}
+    public function lRemove($key, $value, $count) {}
+    public function lSize($key) {}
+    public function listTrim($key, $start, $stop) {}
+    public function open($host, $port = null, $timeout = null, $retry_interval = null) {}
+    public function popen($host, $port = null, $timeout = null) {}
+    public function renameKey($key, $newkey) {}
+    public function sContains($key, $value) {}
+    public function sGetMembers($key) {}
+    public function sRemove($key, $member, ...$other_members) {}
+    public function sSize($key) {}
+    public function sendEcho($msg) {}
+    public function setTimeout($key, $timeout) {}
+    public function substr($key, $start, $end) {}
+    public function zDelete($key, $member, ...$other_members) {}
+    public function zDeleteRangeByRank($key, $min, $max) {}
+    public function zDeleteRangeByScore($key, $min, $max) {}
+    public function zInter($key, array $keys, ?array $weights = null, $aggregate = null) {}
+    public function zRemove($key, $member, ...$other_members) {}
+    public function zRemoveRangeByScore($key, $min, $max) {}
+    public function zReverseRange($key, $start, $end, $scores = null) {}
+    public function zSize($key) {}
+    public function zUnion($key, array $keys, ?array $weights = null, $aggregate = null) {}
 }
 
 class RedisArray {
 
     // methods
-    public function __construct() {}
     public function __call($function_name, $arguments) {}
-    public function _hosts() {}
-    public function _target() {}
-    public function _instance() {}
-    public function _function() {}
+    public function __construct($name_or_hosts, array $options = null) {}
+    public function _continuum() {}
     public function _distributor() {}
-    public function _rehash() {}
-    public function select() {}
-    public function info() {}
-    public function ping() {}
-    public function flushdb() {}
-    public function flushall() {}
-    public function mget() {}
-    public function mset() {}
-    public function del() {}
-    public function getOption() {}
-    public function setOption() {}
-    public function keys() {}
-    public function save() {}
+    public function _function() {}
+    public function _hosts() {}
+    public function _instance($host) {}
+    public function _rehash($callable = null) {}
+    public function _target($key) {}
     public function bgsave() {}
-    public function multi() {}
-    public function exec() {}
+    public function del($keys) {}
     public function discard() {}
+    public function exec() {}
+    public function flushall($async = null) {}
+    public function flushdb($async = null) {}
+    public function getOption($opt) {}
+    public function info() {}
+    public function keys($pattern) {}
+    public function mget($keys) {}
+    public function mset($pairs) {}
+    public function multi($host, $mode = null) {}
+    public function ping() {}
+    public function save() {}
+    public function select($index) {}
+    public function setOption($opt, $value) {}
+    public function unlink() {}
     public function unwatch() {}
-    public function delete() {}
-    public function getMultiple() {}
+    public function delete($keys) {}
+    public function getMultiple($keys) {}
 }
 
 class RedisCluster {
@@ -283,14 +313,20 @@ class RedisCluster {
     const REDIS_LIST = 3;
     const REDIS_ZSET = 4;
     const REDIS_HASH = 5;
+    const REDIS_STREAM = 6;
     const ATOMIC = 0;
     const MULTI = 1;
     const OPT_SERIALIZER = 1;
     const OPT_PREFIX = 2;
     const OPT_READ_TIMEOUT = 3;
+    const OPT_TCP_KEEPALIVE = 6;
+    const OPT_COMPRESSION = 7;
+    const OPT_REPLY_LITERAL = 8;
+    const OPT_COMPRESSION_LEVEL = 9;
     const SERIALIZER_NONE = 0;
     const SERIALIZER_PHP = 1;
-    const SERIALIZER_IGBINARY = 2;
+    const SERIALIZER_JSON = 4;
+    const COMPRESSION_NONE = 0;
     const OPT_SCAN = 4;
     const SCAN_RETRY = 1;
     const SCAN_NORETRY = 0;
@@ -303,173 +339,194 @@ class RedisCluster {
     const BEFORE = 'before';
 
     // methods
-    public function __construct() {}
-    public function close() {}
-    public function get() {}
-    public function set() {}
-    public function mget() {}
-    public function mset() {}
-    public function msetnx() {}
-    public function del() {}
-    public function setex() {}
-    public function psetex() {}
-    public function setnx() {}
-    public function getset() {}
-    public function exists() {}
-    public function keys() {}
-    public function type() {}
-    public function lpop() {}
-    public function rpop() {}
-    public function lset() {}
-    public function spop() {}
-    public function lpush() {}
-    public function rpush() {}
-    public function blpop() {}
-    public function brpop() {}
-    public function rpushx() {}
-    public function lpushx() {}
-    public function linsert() {}
-    public function lindex() {}
-    public function lrem() {}
-    public function brpoplpush() {}
-    public function rpoplpush() {}
-    public function llen() {}
-    public function scard() {}
-    public function smembers() {}
-    public function sismember() {}
-    public function sadd() {}
-    public function saddarray() {}
-    public function srem() {}
-    public function sunion() {}
-    public function sunionstore() {}
-    public function sinter() {}
-    public function sinterstore() {}
-    public function sdiff() {}
-    public function sdiffstore() {}
-    public function srandmember() {}
-    public function strlen() {}
-    public function persist() {}
-    public function ttl() {}
-    public function pttl() {}
-    public function zcard() {}
-    public function zcount() {}
-    public function zremrangebyscore() {}
-    public function zscore() {}
-    public function zadd() {}
-    public function zincrby() {}
-    public function hlen() {}
-    public function hkeys() {}
-    public function hvals() {}
-    public function hget() {}
-    public function hgetall() {}
-    public function hexists() {}
-    public function hincrby() {}
-    public function hset() {}
-    public function hsetnx() {}
-    public function hmget() {}
-    public function hmset() {}
-    public function hdel() {}
-    public function hincrbyfloat() {}
-    public function dump() {}
-    public function zrank() {}
-    public function zrevrank() {}
-    public function incr() {}
-    public function decr() {}
-    public function incrby() {}
-    public function decrby() {}
-    public function incrbyfloat() {}
-    public function expire() {}
-    public function pexpire() {}
-    public function expireat() {}
-    public function pexpireat() {}
-    public function append() {}
-    public function getbit() {}
-    public function setbit() {}
-    public function bitop() {}
-    public function bitpos() {}
-    public function bitcount() {}
-    public function lget() {}
-    public function getrange() {}
-    public function ltrim() {}
-    public function lrange() {}
-    public function zremrangebyrank() {}
-    public function publish() {}
-    public function rename() {}
-    public function renamenx() {}
-    public function pfcount() {}
-    public function pfadd() {}
-    public function pfmerge() {}
-    public function setrange() {}
-    public function restore() {}
-    public function smove() {}
-    public function zrange() {}
-    public function zrevrange() {}
-    public function zrangebyscore() {}
-    public function zrevrangebyscore() {}
-    public function zrangebylex() {}
-    public function zrevrangebylex() {}
-    public function zlexcount() {}
-    public function zremrangebylex() {}
-    public function zunionstore() {}
-    public function zinterstore() {}
-    public function zrem() {}
-    public function sort() {}
-    public function object() {}
-    public function subscribe() {}
-    public function psubscribe() {}
-    public function unsubscribe() {}
-    public function punsubscribe() {}
-    public function eval() {}
-    public function evalsha() {}
-    public function scan(&$i_iterator, $str_node, $str_pattern = null, $i_count = null) {}
-    public function sscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function zscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function hscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
-    public function getmode() {}
-    public function getlasterror() {}
-    public function clearlasterror() {}
-    public function getoption() {}
-    public function setoption() {}
-    public function _prefix() {}
-    public function _serialize() {}
-    public function _unserialize() {}
+    public function __construct($name, array $seeds = null, $timeout = null, $read_timeout = null, $persistent = null, $auth = null) {}
     public function _masters() {}
+    public function _prefix($key) {}
     public function _redir() {}
-    public function multi() {}
-    public function exec() {}
+    public function _serialize($value) {}
+    public function _unserialize($value) {}
+    public function append($key, $value) {}
+    public function bgrewriteaof($key_or_address) {}
+    public function bgsave($key_or_address) {}
+    public function bitcount($key) {}
+    public function bitop($operation, $ret_key, $key, ...$other_keys) {}
+    public function bitpos($key, $bit, $start = null, $end = null) {}
+    public function blpop($key, $timeout_or_key, ...$extra_args) {}
+    public function brpop($key, $timeout_or_key, ...$extra_args) {}
+    public function brpoplpush($src, $dst, $timeout) {}
+    public function clearlasterror() {}
+    public function bzpopmax($key, $timeout_or_key, ...$extra_args) {}
+    public function bzpopmin($key, $timeout_or_key, ...$extra_args) {}
+    public function client($key_or_address, $arg = null, ...$other_args) {}
+    public function close() {}
+    public function cluster($key_or_address, $arg = null, ...$other_args) {}
+    public function command(...$args) {}
+    public function config($key_or_address, $arg = null, ...$other_args) {}
+    public function dbsize($key_or_address) {}
+    public function decr($key) {}
+    public function decrby($key, $value) {}
+    public function del($key, ...$other_keys) {}
     public function discard() {}
-    public function watch() {}
-    public function unwatch() {}
-    public function save() {}
-    public function bgsave() {}
-    public function flushdb() {}
-    public function flushall() {}
-    public function dbsize() {}
-    public function bgrewriteaof() {}
-    public function lastsave() {}
-    public function info() {}
+    public function dump($key) {}
+    public function echo($msg) {}
+    public function eval($script, $args = null, $num_keys = null) {}
+    public function evalsha($script_sha, $args = null, $num_keys = null) {}
+    public function exec() {}
+    public function exists($key) {}
+    public function expire($key, $timeout) {}
+    public function expireat($key, $timestamp) {}
+    public function flushall($key_or_address, $async = null) {}
+    public function flushdb($key_or_address, $async = null) {}
+    public function geoadd($key, $lng, $lat, $member, ...$other_triples) {}
+    public function geodist($key, $src, $dst, $unit = null) {}
+    public function geohash($key, $member, ...$other_members) {}
+    public function geopos($key, $member, ...$other_members) {}
+    public function georadius($key, $lng, $lan, $radius, $unit, array $opts = null) {}
+    public function georadius_ro($key, $lng, $lan, $radius, $unit, array $opts = null) {}
+    public function georadiusbymember($key, $member, $radius, $unit, array $opts = null) {}
+    public function georadiusbymember_ro($key, $member, $radius, $unit, array $opts = null) {}
+    public function get($key) {}
+    public function getbit($key, $offset) {}
+    public function getlasterror() {}
+    public function getmode() {}
+    public function getoption($option) {}
+    public function getrange($key, $start, $end) {}
+    public function getset($key, $value) {}
+    public function hdel($key, $member, ...$other_members) {}
+    public function hexists($key, $member) {}
+    public function hget($key, $member) {}
+    public function hgetall($key) {}
+    public function hincrby($key, $member, $value) {}
+    public function hincrbyfloat($key, $member, $value) {}
+    public function hkeys($key) {}
+    public function hlen($key) {}
+    public function hmget($key, array $keys) {}
+    public function hmset($key, array $pairs) {}
+    public function hscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function hset($key, $member, $value) {}
+    public function hsetnx($key, $member, $value) {}
+    public function hstrlen($key, $member) {}
+    public function hvals($key) {}
+    public function incr($key) {}
+    public function incrby($key, $value) {}
+    public function incrbyfloat($key, $value) {}
+    public function info($key_or_address, $option = null) {}
+    public function keys($pattern) {}
+    public function lastsave($key_or_address) {}
+    public function lget($key, $index) {}
+    public function lindex($key, $index) {}
+    public function linsert($key, $position, $pivot, $value) {}
+    public function llen($key) {}
+    public function lpop($key) {}
+    public function lpush($key, $value) {}
+    public function lpushx($key, $value) {}
+    public function lrange($key, $start, $end) {}
+    public function lrem($key, $value) {}
+    public function lset($key, $index, $value) {}
+    public function ltrim($key, $start, $stop) {}
+    public function mget(array $keys) {}
+    public function mset(array $pairs) {}
+    public function msetnx(array $pairs) {}
+    public function multi() {}
+    public function object($field, $key) {}
+    public function persist($key) {}
+    public function pexpire($key, $timestamp) {}
+    public function pexpireat($key, $timestamp) {}
+    public function pfadd($key, array $elements) {}
+    public function pfcount($key) {}
+    public function pfmerge($dstkey, array $keys) {}
+    public function ping($key_or_address) {}
+    public function psetex($key, $expire, $value) {}
+    public function psubscribe(array $patterns, $callback) {}
+    public function pttl($key) {}
+    public function publish($channel, $message) {}
+    public function pubsub($key_or_address, $arg = null, ...$other_args) {}
+    public function punsubscribe($pattern, ...$other_patterns) {}
+    public function randomkey($key_or_address) {}
+    public function rawcommand($cmd, ...$args) {}
+    public function rename($key, $newkey) {}
+    public function renamenx($key, $newkey) {}
+    public function restore($ttl, $key, $value) {}
     public function role() {}
+    public function rpop($key) {}
+    public function rpoplpush($src, $dst) {}
+    public function rpush($key, $value) {}
+    public function rpushx($key, $value) {}
+    public function sadd($key, $value) {}
+    public function saddarray($key, array $options) {}
+    public function save($key_or_address) {}
+    public function scan(&$i_iterator, $str_node, $str_pattern = null, $i_count = null) {}
+    public function scard($key) {}
+    public function script($key_or_address, $arg = null, ...$other_args) {}
+    public function sdiff($key, ...$other_keys) {}
+    public function sdiffstore($dst, $key, ...$other_keys) {}
+    public function set($key, $value, $opts = null) {}
+    public function setbit($key, $offset, $value) {}
+    public function setex($key, $expire, $value) {}
+    public function setnx($key, $value) {}
+    public function setoption($option, $value) {}
+    public function setrange($key, $offset, $value) {}
+    public function sinter($key, ...$other_keys) {}
+    public function sinterstore($dst, $key, ...$other_keys) {}
+    public function sismember($key, $value) {}
+    public function slowlog($key_or_address, $arg = null, ...$other_args) {}
+    public function smembers($key) {}
+    public function smove($src, $dst, $value) {}
+    public function sort($key, array $options = null) {}
+    public function spop($key) {}
+    public function srandmember($key, $count = null) {}
+    public function srem($key, $value) {}
+    public function sscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function strlen($key) {}
+    public function subscribe(array $channels, $callback) {}
+    public function sunion($key, ...$other_keys) {}
+    public function sunionstore($dst, $key, ...$other_keys) {}
     public function time() {}
-    public function randomkey() {}
-    public function ping() {}
-    public function echo() {}
-    public function command() {}
-    public function rawcommand() {}
-    public function cluster() {}
-    public function client() {}
-    public function config() {}
-    public function pubsub() {}
-    public function script() {}
-    public function slowlog() {}
-    public function geoadd() {}
-    public function geohash() {}
-    public function geopos() {}
-    public function geodist() {}
-    public function georadius() {}
-    public function georadiusbymember() {}
+    public function ttl($key) {}
+    public function type($key) {}
+    public function unsubscribe($channel, ...$other_channels) {}
+    public function unlink($key, ...$other_keys) {}
+    public function unwatch() {}
+    public function watch($key, ...$other_keys) {}
+    public function xack($str_key, $str_group, array $arr_ids) {}
+    public function xadd($str_key, $str_id, array $arr_fields, $i_maxlen = null, $boo_approximate = null) {}
+    public function xclaim($str_key, $str_group, $str_consumer, $i_min_idle, array $arr_ids, array $arr_opts = null) {}
+    public function xdel($str_key, array $arr_ids) {}
+    public function xgroup($str_operation, $str_key = null, $str_arg1 = null, $str_arg2 = null, $str_arg3 = null) {}
+    public function xinfo($str_cmd, $str_key = null, $str_group = null) {}
+    public function xlen($key) {}
+    public function xpending($str_key, $str_group, $str_start = null, $str_end = null, $i_count = null, $str_consumer = null) {}
+    public function xrange($str_key, $str_start, $str_end, $i_count = null) {}
+    public function xread(array $arr_streams, $i_count = null, $i_block = null) {}
+    public function xreadgroup($str_group, $str_consumer, array $arr_streams, $i_count = null, $i_block = null) {}
+    public function xrevrange($str_key, $str_start, $str_end, $i_count = null) {}
+    public function xtrim($str_key, $i_maxlen, $boo_approximate = null) {}
+    public function zadd($key, $score, $value) {}
+    public function zcard($key) {}
+    public function zcount($key, $min, $max) {}
+    public function zincrby($key, $value, $member) {}
+    public function zinterstore($key, array $keys, ?array $weights = null, $aggregate = null) {}
+    public function zlexcount($key, $min, $max) {}
+    public function zpopmax($key) {}
+    public function zpopmin($key) {}
+    public function zrange($key, $start, $end, $scores = null) {}
+    public function zrangebylex($key, $min, $max, $offset = null, $limit = null) {}
+    public function zrangebyscore($key, $start, $end, array $options = null) {}
+    public function zrank($key, $member) {}
+    public function zrem($key, $member, ...$other_members) {}
+    public function zremrangebylex($key, $min, $max) {}
+    public function zremrangebyrank($key, $min, $max) {}
+    public function zremrangebyscore($key, $min, $max) {}
+    public function zrevrange($key, $start, $end, $scores = null) {}
+    public function zrevrangebylex($key, $min, $max, $offset = null, $limit = null) {}
+    public function zrevrangebyscore($key, $start, $end, array $options = null) {}
+    public function zrevrank($key, $member) {}
+    public function zscan($str_key, &$i_iterator, $str_pattern = null, $i_count = null) {}
+    public function zscore($key, $member) {}
+    public function zunionstore($key, array $keys, ?array $weights = null, $aggregate = null) {}
 }
 
-class RedisClusterException extends \RuntimeException {
+class RedisClusterException extends \Exception {
 
     // properties
     protected $message;
@@ -478,7 +535,7 @@ class RedisClusterException extends \RuntimeException {
     protected $line;
 }
 
-class RedisException extends \RuntimeException {
+class RedisException extends \Exception {
 
     // properties
     protected $message;