diff --git a/src/Bynder/Api/BynderClient.php b/src/Bynder/Api/BynderClient.php
index a0ec0b4..998df3b 100644
--- a/src/Bynder/Api/BynderClient.php
+++ b/src/Bynder/Api/BynderClient.php
@@ -17,6 +17,11 @@ class BynderClient
      */
     private $assetBankManager;
 
+    /**
+     * @var Configuration The configuration object.
+     */
+    private $configuration;
+
     public function __construct($configuration)
     {
         if ($configuration instanceof PermanentTokens\Configuration) {
diff --git a/src/Bynder/Api/Impl/OAuth2/Configuration.php b/src/Bynder/Api/Impl/OAuth2/Configuration.php
index 4caae39..464ee08 100644
--- a/src/Bynder/Api/Impl/OAuth2/Configuration.php
+++ b/src/Bynder/Api/Impl/OAuth2/Configuration.php
@@ -17,22 +17,46 @@
  */
 class Configuration
 {
+    /**
+     * @var string The Bynder domain.
+     */
     private $bynderDomain;
-    private $rootDir;
+
+    /**
+     * @var string The redirect URI.
+     */
     private $redirectUri;
 
     /**
      * @var string Client ID.
      */
     private $clientId;
+
     /**
      * @var string Client Secret.
      */
     private $clientSecret;
+
     /**
      * @var string Access token.
      */
     private $token;
+
+    /**
+     * @var array Request options.
+     */
+    private $requestOptions;
+
+    /**
+     * @var string Root directory.
+     */
+    private $rootDir;
+
+    /**
+     * @var object The package.
+     */
+    private $package;
+
     /**
      * @var string Initial access token, used for logout.
      */
diff --git a/src/Bynder/Api/Impl/PermanentTokens/Configuration.php b/src/Bynder/Api/Impl/PermanentTokens/Configuration.php
index 4457b73..f828150 100644
--- a/src/Bynder/Api/Impl/PermanentTokens/Configuration.php
+++ b/src/Bynder/Api/Impl/PermanentTokens/Configuration.php
@@ -11,14 +11,31 @@
 
 class Configuration
 {
+    /**
+     * @var string The Bynder domain.
+     */
     private $bynderDomain;
-    private $rootDir;
 
     /**
      * @var string Permanent token.
      */
     private $token;
 
+    /**
+     * @var array Request options.
+     */
+    private $requestOptions;
+
+    /**
+     * @var string The root dir.
+     */
+    private $rootDir;
+
+    /**
+     * @var object The package.
+     */
+    private $package;
+
     /**
      * Initialises a new instance with the specified params.
      *