Add types to constructors and private/final/internal methods (Batch II)

Author: derrabus

Key.php

@@ -60,7 +60,7 @@ public function resetLifetime()
     /**
      * @param float $ttl the expiration delay of locks in seconds
      */
-    public function reduceLifetime($ttl)
+    public function reduceLifetime(float $ttl)
     {
         $newTime = microtime(true) + $ttl;
 

Store/MemcachedStore.php

@@ -161,7 +161,7 @@ private function getUniqueToken(Key $key): string
         return $key->getState(__CLASS__);
     }
 
-    private function getValueAndCas(Key $key)
+    private function getValueAndCas(Key $key): array
     {
         if (null === $this->useExtendedReturn) {
             $this->useExtendedReturn = version_compare(phpversion('memcached'), '2.9.9', '>');