diff --git a/.gitignore b/.gitignore
index 49706e86a..ce6e03611 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ vendor/
 composer.lock
 
 .phpunit.result.cache
-.phpcs-cache
\ No newline at end of file
+/.phpcs-cache
+/.credentials.json
diff --git a/README.md b/README.md
index 0138eeda8..8393d27c9 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Forked from [php-gitlab-api](https://github.com/jeroeny/gitlab-api) and based on
 Installation
 ------------
 
-Via [composer](https://getcomposer.org)
+Using [composer](https://getcomposer.org):
 
 ```bash
 composer require jeroeny/gitlab-api
diff --git a/composer.json b/composer.json
index e17e48c2c..c4f0d4e68 100644
--- a/composer.json
+++ b/composer.json
@@ -9,6 +9,10 @@
     ],
     "license": "MIT",
     "authors": [
+        {
+            "name": "Jeroen Spee",
+            "homepage": "https://github.com/Jeroeny"
+        },
         {
             "name": "Matt Humphrey",
             "homepage": "http://m4tt.io"
diff --git a/src/Api/Repositories.php b/src/Api/Repositories.php
index 7ca060153..5317c8b1e 100644
--- a/src/Api/Repositories.php
+++ b/src/Api/Repositories.php
@@ -135,8 +135,6 @@ public function updateRelease(int $project_id, string $tag_name, string $descrip
      */
     public function releases(int $project_id)
     {
-        $resolver = $this->createOptionsResolver();
-
         return $this->get($this->getProjectPath($project_id, 'releases'));
     }
 
diff --git a/src/Model/Commit.php b/src/Model/Commit.php
index 342d70e33..197d2d2f7 100644
--- a/src/Model/Commit.php
+++ b/src/Model/Commit.php
@@ -69,7 +69,7 @@ public static function fromArray(?Client $client, Project $project, array $data)
         return $commit->hydrate($data);
     }
 
-    public function __construct(Project $project, ?int $id = null, ?Client $client = null)
+    public function __construct(Project $project, ?string $id = null, ?Client $client = null)
     {
         $this->setClient($client);
         $this->setData('project', $project);
diff --git a/src/Model/Model.php b/src/Model/Model.php
index 7e4244b8d..111412393 100644
--- a/src/Model/Model.php
+++ b/src/Model/Model.php
@@ -100,11 +100,7 @@ public function __get(string $property)
             ));
         }
 
-        if (isset($this->data[$property])) {
-            return $this->data[$property];
-        }
-
-        return null;
+        return $this->data[$property] ?? null;
     }
 
     public function __isset(string $property): bool