diff --git a/src/Model/Checkout/v3/GetCheckoutSessionResponse.php b/src/Model/Checkout/v3/GetCheckoutSessionResponse.php
index da03069..a337423 100644
--- a/src/Model/Checkout/v3/GetCheckoutSessionResponse.php
+++ b/src/Model/Checkout/v3/GetCheckoutSessionResponse.php
@@ -71,4 +71,94 @@ class GetCheckoutSessionResponse
      * @Serializer\Type("boolean")
      */
     protected $customConsentProvided;
+
+    /**
+     * Gets merchantSerialNumber value.
+     *
+     * @return string|null
+     */
+    public function getMerchantSerialNumber(): ?string {
+        return $this->merchantSerialNumber;
+    }
+
+    /**
+     * Gets reference value.
+     *
+     * @return string
+     */
+    public function getReference(): string {
+        return $this->reference;
+    }
+
+    /**
+     * Gets paymentMethod value.
+     *
+     * @return string|null
+     */
+    public function getPaymentMethod(): ?string {
+        return $this->paymentMethod;
+    }
+
+    /**
+     * Gets billingDetails value.
+     *
+     * @return \zaporylie\Vipps\Model\Checkout\v3\BillingDetails
+     */
+    public function getBillingDetails(): BillingDetails {
+        return $this->billingDetails;
+    }
+
+    /**
+     * Gets paymentDetails value.
+     *
+     * @return \zaporylie\Vipps\Model\Checkout\v3\WalletPaymentDetails
+     */
+    public function getPaymentDetails(): WalletPaymentDetails {
+        return $this->paymentDetails;
+    }
+
+    /**
+     * Gets sessionId value.
+     *
+     * @return string
+     */
+    public function getSessionId(): string {
+        return $this->sessionId;
+    }
+
+    /**
+     * Gets sessionState value.
+     *
+     * @return string
+     */
+    public function getSessionState(): string {
+        return $this->sessionState;
+    }
+
+    /**
+     * Gets shippingDetails value.
+     *
+     * @return \zaporylie\Vipps\Model\Checkout\v3\ShippingDetails
+     */
+    public function getShippingDetails(): ShippingDetails {
+        return $this->shippingDetails;
+    }
+
+    /**
+     * Gets subscriptionDetails value.
+     *
+     * @return \zaporylie\Vipps\Model\Checkout\v3\SubscriptionDetails
+     */
+    public function getSubscriptionDetails(): SubscriptionDetails {
+        return $this->subscriptionDetails;
+    }
+
+    /**
+     * Gets userInfo value.
+     *
+     * @return \zaporylie\Vipps\Model\Checkout\v3\UserInfo
+     */
+    public function getUserInfo(): UserInfo {
+        return $this->userInfo;
+    }
 }