[FIX] Deprecated warnings #23

Author: jeanmatthieud

src/Aliases.php

@@ -97,7 +97,7 @@ public function offsetExists($offset): bool
     /**
      * @inheritDoc
      */
-    public function offsetGet($offset)
+    public function offsetGet($offset): Alias
     {
         if (!isset($this->aliases[$offset])) {
             $this->aliases[$offset] = new Alias($offset, $this->apiCall);

src/Overrides.php

@@ -92,7 +92,7 @@ public function offsetExists($overrideId): bool
     /**
      * @inheritDoc
      */
-    public function offsetGet($overrideId)
+    public function offsetGet($overrideId): Override
     {
         if (!isset($this->overrides[$overrideId])) {
             $this->overrides[$overrideId] = new Override($this->collectionName, $overrideId, $this->apiCall);

src/Synonyms.php

@@ -90,7 +90,7 @@ public function offsetExists($synonymId): bool
     /**
      * @inheritDoc
      */
-    public function offsetGet($synonymId)
+    public function offsetGet($synonymId): Synonym
     {
         if (!isset($this->synonyms[$synonymId])) {
             $this->synonyms[$synonymId] = new Synonym($this->collectionName, $synonymId, $this->apiCall);