Initial commit

.gitignore

+# ref: https://github.com/github/gitignore/blob/master/Composer.gitignore
+
+composer.phar
+/vendor/
+
+# Commit your application's lock file https://getcomposer.org/doc/01-basic-usage.md#commit-your-composer-lock-file-to-version-control
+# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
+# composer.lock
+
+# php-cs-fixer cache
+.php_cs.cache
+.php-cs-fixer.cache
+
+# PHPUnit cache
+.phpunit.result.cache

.openapi-generator-ignore

+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

.openapi-generator/FILES

+.gitignore
+.openapi-generator-ignore
+.php-cs-fixer.dist.php
+.travis.yml
+README.md
+composer.json
+docs/Api/DefaultApi.md
+docs/Model/Address.md
+docs/Model/AssetUrls.md
+docs/Model/Attachment.md
+docs/Model/AuthorizedPaymentMethod.md
+docs/Model/CreateOrderRequest.md
+docs/Model/Customer.md
+docs/Model/CustomerRead.md
+docs/Model/CustomerReadCreateToken.md
+docs/Model/CustomerTokenCreationRequest.md
+docs/Model/CustomerTokenCreationResponse.md
+docs/Model/ErrorV2.md
+docs/Model/MerchantSession.md
+docs/Model/MerchantUrls.md
+docs/Model/Options.md
+docs/Model/Order.md
+docs/Model/OrderLine.md
+docs/Model/PaymentMethodCategory.md
+docs/Model/ProductIdentifiers.md
+docs/Model/Session.md
+docs/Model/SessionCreate.md
+docs/Model/SessionRead.md
+docs/Model/Subscription.md
+git_push.sh
+lib/Api/DefaultApi.php
+lib/ApiException.php
+lib/Configuration.php
+lib/HeaderSelector.php
+lib/Model/Address.php
+lib/Model/AssetUrls.php
+lib/Model/Attachment.php
+lib/Model/AuthorizedPaymentMethod.php
+lib/Model/CreateOrderRequest.php
+lib/Model/Customer.php
+lib/Model/CustomerRead.php
+lib/Model/CustomerReadCreateToken.php
+lib/Model/CustomerTokenCreationRequest.php
+lib/Model/CustomerTokenCreationResponse.php
+lib/Model/ErrorV2.php
+lib/Model/MerchantSession.php
+lib/Model/MerchantUrls.php
+lib/Model/ModelInterface.php
+lib/Model/Options.php
+lib/Model/Order.php
+lib/Model/OrderLine.php
+lib/Model/PaymentMethodCategory.php
+lib/Model/ProductIdentifiers.php
+lib/Model/Session.php
+lib/Model/SessionCreate.php
+lib/Model/SessionRead.php
+lib/Model/Subscription.php
+lib/ObjectSerializer.php
+phpunit.xml.dist
+test/Api/DefaultApiTest.php
+test/Model/AddressTest.php
+test/Model/AssetUrlsTest.php
+test/Model/AttachmentTest.php
+test/Model/AuthorizedPaymentMethodTest.php
+test/Model/CreateOrderRequestTest.php
+test/Model/CustomerReadCreateTokenTest.php
+test/Model/CustomerReadTest.php
+test/Model/CustomerTest.php
+test/Model/CustomerTokenCreationRequestTest.php
+test/Model/CustomerTokenCreationResponseTest.php
+test/Model/ErrorV2Test.php
+test/Model/MerchantSessionTest.php
+test/Model/MerchantUrlsTest.php
+test/Model/OptionsTest.php
+test/Model/OrderLineTest.php
+test/Model/OrderTest.php
+test/Model/PaymentMethodCategoryTest.php
+test/Model/ProductIdentifiersTest.php
+test/Model/SessionCreateTest.php
+test/Model/SessionReadTest.php
+test/Model/SessionTest.php
+test/Model/SubscriptionTest.php

.openapi-generator/VERSION

+7.12.0

.php-cs-fixer.dist.php

+<?php
+
+/**
+ * @generated
+ * @link https://github.com/FriendsOfPHP/PHP-CS-Fixer/blob/HEAD/doc/config.rst
+ */
+$finder = PhpCsFixer\Finder::create()
+    ->in(__DIR__)
+    ->exclude('vendor')
+    ->exclude('test')
+    ->exclude('tests')
+;
+
+$config = new PhpCsFixer\Config();
+return $config->setRules([
+        '@PSR12' => true,
+        'phpdoc_order' => true,
+        'array_syntax' => [ 'syntax' => 'short' ],
+        'strict_comparison' => true,
+        'strict_param' => true,
+        'no_trailing_whitespace' => false,
+        'no_trailing_whitespace_in_comment' => false,
+        'braces' => false,
+        'single_blank_line_at_eof' => false,
+        'blank_line_after_namespace' => false,
+        'no_leading_import_slash' => false,
+    ])
+    ->setFinder($finder)
+;

.travis.yml

+language: php
+# Bionic environment has preinstalled PHP from 7.1 to 7.4
+# https://docs.travis-ci.com/user/reference/bionic/#php-support
+dist: bionic
+php:
+    - 7.4
+before_install: "composer install"
+script: "vendor/bin/phpunit"

README.md

+# OpenAPIClient-php
+
+The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).
+
+**Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.
+
+Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+
+
+## Installation & Usage
+
+### Requirements
+
+PHP 7.4 and later.
+Should also work with PHP 8.0.
+
+### Composer
+
+To install the bindings via [Composer](https://getcomposer.org/), add the following to `composer.json`:
+
+```json
+{
+  "repositories": [
+    {
+      "type": "vcs",
+      "url": "https://github.com/GIT_USER_ID/GIT_REPO_ID.git"
+    }
+  ],
+  "require": {
+    "GIT_USER_ID/GIT_REPO_ID": "*@dev"
+  }
+}
+```
+
+Then run `composer install`
+
+### Manual Installation
+
+Download the files and include `autoload.php`:
+
+```php
+<?php
+require_once('/path/to/OpenAPIClient-php/vendor/autoload.php');
+```
+
+## Getting Started
+
+Please follow the [installation procedure](#installation--usage) and then run the following:
+
+```php
+<?php
+require_once(__DIR__ . '/vendor/autoload.php');
+
+
+
+
+$apiInstance = new KlarnaPayments\Client\Api\DefaultApi(
+    // If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
+    // This is optional, `GuzzleHttp\Client` will be used as default.
+    new GuzzleHttp\Client()
+);
+$authorization_token = 'authorization_token_example'; // string
+
+try {
+    $apiInstance->cancelAuthorization($authorization_token);
+} catch (Exception $e) {
+    echo 'Exception when calling DefaultApi->cancelAuthorization: ', $e->getMessage(), PHP_EOL;
+}
+
+```
+
+## API Endpoints
+
+All URIs are relative to *https://api.klarna.com*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*DefaultApi* | [**cancelAuthorization**](docs/Api/DefaultApi.md#cancelauthorization) | **DELETE** /payments/v1/authorizations/{authorizationToken} | Cancel an authorization
+*DefaultApi* | [**createCreditSession**](docs/Api/DefaultApi.md#createcreditsession) | **POST** /payments/v1/sessions | Create a session
+*DefaultApi* | [**createOrder**](docs/Api/DefaultApi.md#createorder) | **POST** /payments/v1/authorizations/{authorizationToken}/order | Create an order
+*DefaultApi* | [**purchaseToken**](docs/Api/DefaultApi.md#purchasetoken) | **POST** /payments/v1/authorizations/{authorizationToken}/customer-token | Generate a customer token
+*DefaultApi* | [**readCreditSession**](docs/Api/DefaultApi.md#readcreditsession) | **GET** /payments/v1/sessions/{session_id} | Get details about a session
+*DefaultApi* | [**updateCreditSession**](docs/Api/DefaultApi.md#updatecreditsession) | **POST** /payments/v1/sessions/{session_id} | Update a session
+
+## Models
+
+- [Address](docs/Model/Address.md)
+- [AssetUrls](docs/Model/AssetUrls.md)
+- [Attachment](docs/Model/Attachment.md)
+- [AuthorizedPaymentMethod](docs/Model/AuthorizedPaymentMethod.md)
+- [CreateOrderRequest](docs/Model/CreateOrderRequest.md)
+- [Customer](docs/Model/Customer.md)
+- [CustomerRead](docs/Model/CustomerRead.md)
+- [CustomerReadCreateToken](docs/Model/CustomerReadCreateToken.md)
+- [CustomerTokenCreationRequest](docs/Model/CustomerTokenCreationRequest.md)
+- [CustomerTokenCreationResponse](docs/Model/CustomerTokenCreationResponse.md)
+- [ErrorV2](docs/Model/ErrorV2.md)
+- [MerchantSession](docs/Model/MerchantSession.md)
+- [MerchantUrls](docs/Model/MerchantUrls.md)
+- [Options](docs/Model/Options.md)
+- [Order](docs/Model/Order.md)
+- [OrderLine](docs/Model/OrderLine.md)
+- [PaymentMethodCategory](docs/Model/PaymentMethodCategory.md)
+- [ProductIdentifiers](docs/Model/ProductIdentifiers.md)
+- [Session](docs/Model/Session.md)
+- [SessionCreate](docs/Model/SessionCreate.md)
+- [SessionRead](docs/Model/SessionRead.md)
+- [Subscription](docs/Model/Subscription.md)
+
+## Authorization
+Endpoints do not require authorization.
+
+## Tests
+
+To run the tests, use:
+
+```bash
+composer install
+vendor/bin/phpunit
+```
+
+## Author
+
+
+
+## About this package
+
+This PHP package is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
+
+- API version: `1.0.0`
+    - Generator version: `7.12.0`
+- Build package: `org.openapitools.codegen.languages.PhpClientCodegen`

composer.json

+{
+    "description": "The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).",
+    "keywords": [
+        "openapitools",
+        "openapi-generator",
+        "openapi",
+        "php",
+        "sdk",
+        "rest",
+        "api"
+    ],
+    "homepage": "https://openapi-generator.tech",
+    "license": "unlicense",
+    "authors": [
+        {
+            "name": "OpenAPI",
+            "homepage": "https://openapi-generator.tech"
+        }
+    ],
+    "require": {
+        "php": "^7.4 || ^8.0",
+        "ext-curl": "*",
+        "ext-json": "*",
+        "ext-mbstring": "*",
+        "guzzlehttp/guzzle": "^7.3",
+        "guzzlehttp/psr7": "^1.7 || ^2.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^8.0 || ^9.0",
+        "friendsofphp/php-cs-fixer": "^3.5"
+    },
+    "autoload": {
+        "psr-4": { "KlarnaPayments\\Client\\" : "lib/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "KlarnaPayments\\Client\\Test\\" : "test/" }
+    }
+}

docs/Model/Address.md

+# # Address
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**attention** | **string** | ‘Attn.’ (if applicable). Only applicable for B2B customers. | [optional]
+**city** | **string** | Customer’s city. | [optional]
+**country** | **string** | Customer’s country. This value overrides the purchase country if they are different. Should follow the standard of ISO 3166 alpha-2. E.g. GB, US, DE, SE. | [optional]
+**email** | **string** | Customer’s email address. | [optional]
+**family_name** | **string** | Customers family name in UTF-8 encoding. Cannot be only numbers, must be more than 1 character. Allowed special characters: -'’. More information can be found [in this link](https://docs.klarna.com/klarna-payments/in-depth-knowledge/customer-data-requirements/#details-needed-per-market) | [optional]
+**given_name** | **string** | Customers given name in UTF-8 encoding. Cannot be only numbers, must be more than 1 character. Allowed special characters: -'’. More information can be found [in this link](https://docs.klarna.com/klarna-payments/in-depth-knowledge/customer-data-requirements/#details-needed-per-market) | [optional]
+**organization_name** | **string** | Organization name (if applicable). Only applicable for B2B customers. | [optional]
+**phone** | **string** | Phone number. Preferably a mobile phone number. | [optional]
+**postal_code** | **string** | Customer’s postal code. Validation according to [Universal Postal Union addressing system](https://www.upu.int/en/activities/addressing/postal-addressing-systems-in-member-countries.html). E.g. 12345, W1G OPW. | [optional]
+**region** | **string** | Customer’s region or state - Mandatory for US and AU market. Validations according to ISO 3166-2 format, e.g. US-OH, AU-ACT, etc. | [optional]
+**street_address** | **string** | Customer’s street address. Validation according to [Universal Postal Union addressing system](https://www.upu.int/en/activities/addressing/postal-addressing-systems-in-member-countries.html). Regional formatting is required, as follows: UK/US/FR: 33 Cavendish Square Rest of EU: De Ruijterkade 7 | [optional]
+**street_address2** | **string** | Customer’s street address. Second Line. | [optional]
+**title** | **string** | Customer’s Title. Allowed values per country: UK - \"Mr\", \"Ms\" DE - \"Herr\", \"Frau\" AT: \"Herr, \"Frau\" CH: de-CH: \"Herr, \"Frau\" it-CH: \"Sig.\", \"Sig.ra\" fr-CH: \"M\", \"Mme\"  BE: \"Dhr.\", \"Mevr.\" NL: \"Dhr.\", \"Mevr.\" | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/AssetUrls.md

+# # AssetUrls
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**descriptive** | **string** | URL of the descriptive asset. Using this dynamic asset will make sure that any copy update of Klarna will automatically be propagated. | [optional]
+**standard** | **string** | URL of the standard asset. Using this dynamic asset will make sure that any copy update of Klarna will automatically be propagated. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/Attachment.md

+# # Attachment
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**body** | **string** | The content of the extra merchant data should be presented as a string inside this property. The body should be an object containing any of the keys and sub-objects described below serialized to JSON. More information on that object can be found [here](https://docs.klarna.com/api/extra-merchant-data). |
+**content_type** | **string** | The content type of the body. It is usually represented as \"application/vnd.klarna.internal.emd-v2+json\" |
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/AuthorizedPaymentMethod.md

+# # AuthorizedPaymentMethod
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**number_of_days** | **int** |  | [optional]
+**number_of_installments** | **int** |  | [optional]
+**type** | **string** |  |
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/CreateOrderRequest.md

+# # CreateOrderRequest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**authorization_token** | **string** | Authorization token. | [optional] [readonly]
+**auto_capture** | **bool** | Allow merchant to trigger auto capturing. | [optional] [default to false]
+**billing_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**custom_payment_method_ids** | **string[]** | Promo codes - The array could be used to define which of the configured payment options within a payment category (pay_later, pay_over_time, etc.) should be shown for this purchase. Discuss with the delivery manager to know about the promo codes that will be configured for your account. The feature could also be used to provide promotional offers to specific customers (eg: 0% financing). Please be informed that the usage of this feature can have commercial implications. | [optional]
+**customer** | [**\KlarnaPayments\Client\Model\Customer**](Customer.md) |  | [optional]
+**locale** | **string** | Used to define the language and region of the customer. The locale follows the format of [RFC 1766](https://datatracker.ietf.org/doc/rfc1766/), meaning its value consists of language-country. Read more on **[Supported Locals and Currencies](https://docs.klarna.com/klarna-payments/in-depth-knowledge/puchase-countries-currencies-locales/)**. | [optional]
+**merchant_data** | **string** | Pass through field to send any information about the order to be used later for reference while retrieving the order details (max 6000 characters) | [optional]
+**merchant_reference1** | **string** | Used for storing merchant's internal order number or other reference. | [optional]
+**merchant_reference2** | **string** | Used for storing merchant's internal order number or other reference. The value is available in the settlement files. (max 255 characters). | [optional]
+**merchant_urls** | [**\KlarnaPayments\Client\Model\MerchantUrls**](MerchantUrls.md) |  | [optional]
+**order_amount** | **int** | Total amount of the order including tax and any available discounts. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. |
+**order_lines** | [**\KlarnaPayments\Client\Model\OrderLine[]**](OrderLine.md) | The array containing list of line items that are part of this order. Maximum of 1000 line items could be processed in a single order. |
+**order_tax_amount** | **int** | Total tax amount of the order. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. | [optional]
+**payment_method_categories** | [**\KlarnaPayments\Client\Model\PaymentMethodCategory[]**](PaymentMethodCategory.md) | Available payment method categories | [optional] [readonly]
+**purchase_country** | **string** | The purchase country of the customer. The billing country always overrides purchase country if the values are different. Formatted according to ISO 3166 alpha-2 standard, e.g. GB, SE, DE, US, etc. |
+**purchase_currency** | **string** | The purchase currency of the order. Formatted according to ISO 4217 standard, e.g. USD, EUR, SEK, GBP, etc. |
+**shipping_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**status** | **string** | The current status of the session. Possible values: 'complete', 'incomplete' where 'complete' is set when the order has been placed. | [optional] [readonly]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/Customer.md

+# # Customer
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**date_of_birth** | **string** | Customer’s date of birth. The format is ‘yyyy-mm-dd’ | [optional]
+**gender** | **string** | Customer’s gender - ‘male’ or ‘female’ | [optional]
+**last_four_ssn** | **string** | Last four digits of the customer's social security number. This value is available for US customers. | [optional]
+**national_identification_number** | **string** | The customer's national identification number. This value is available for EU customers utilizing national identification numbers. | [optional]
+**organization_entity_type** | **string** | Organization entity type. Only applicable for B2B customers. | [optional]
+**organization_registration_id** | **string** | Organization registration id. Only applicable for B2B customers. | [optional]
+**title** | **string** | Customer’s Title. Allowed values per country: UK - \"Mr\", \"Ms\" DE - \"Herr\", \"Frau\" AT: \"Herr, \"Frau\" CH: de-CH: \"Herr, \"Frau\" it-CH: \"Sig.\", \"Sig.ra\" fr-CH: \"M\", \"Mme\"  BE: \"Dhr.\", \"Mevr.\" NL: \"Dhr.\", \"Mevr.\" | [optional]
+**type** | **string** | Type of customer in the session. If nothing is added, a B2C session will be the default. If it is a b2b-session, you should enter organization to trigger a B2B session. | [optional]
+**vat_id** | **string** | VAT ID. Only applicable for B2B customers. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/CustomerRead.md

+# # CustomerRead
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**date_of_birth** | **string** | Customer’s date of birth. The format is ‘yyyy-mm-dd’ | [optional]
+**gender** | **string** | Customer’s gender - ‘male’ or ‘female’ | [optional]
+**organization_entity_type** | **string** | Organization entity type. Only applicable for B2B customers. | [optional]
+**organization_registration_id** | **string** | Organization registration id. Only applicable for B2B customers. | [optional]
+**title** | **string** | Customer’s Title. Allowed values per country: UK - \"Mr\", \"Ms\" DE - \"Herr\", \"Frau\" AT: \"Herr, \"Frau\" CH: de-CH: \"Herr, \"Frau\" it-CH: \"Sig.\", \"Sig.ra\" fr-CH: \"M\", \"Mme\"  BE: \"Dhr.\", \"Mevr.\" NL: \"Dhr.\", \"Mevr.\" | [optional]
+**type** | **string** | Type of customer in the session. If nothing is added, a B2C session will be the default. If it is a b2b-session, you should enter organization to trigger a B2B session. | [optional]
+**vat_id** | **string** | VAT ID. Only applicable for B2B customers. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/CustomerReadCreateToken.md

+# # CustomerReadCreateToken
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**date_of_birth** | **string** | Customer’s date of birth. The format is ‘yyyy-mm-dd’ | [optional]
+**gender** | **string** | Customer’s gender - ‘male’ or ‘female’ | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/CustomerTokenCreationRequest.md

+# # CustomerTokenCreationRequest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**billing_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**customer** | [**\KlarnaPayments\Client\Model\Customer**](Customer.md) |  | [optional]
+**description** | **string** | Description of the purpose of the token. |
+**intended_use** | **string** | Intended use for the token. |
+**locale** | **string** | RFC 1766 customer's locale. |
+**purchase_country** | **string** | ISO 3166 alpha-2 purchase country. |
+**purchase_currency** | **string** | ISO 4217 purchase currency. |
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/CustomerTokenCreationResponse.md

+# # CustomerTokenCreationResponse
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**billing_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**customer** | [**\KlarnaPayments\Client\Model\CustomerReadCreateToken**](CustomerReadCreateToken.md) |  | [optional]
+**payment_method_reference** | **string** | Used to connect customers with payment method when it is present. | [optional]
+**redirect_url** | **string** | URL to redirect the customer to after placing the order. This is a Klarna URL where Klarna will place a cookie in the customer’s browser (if redirected) and redirect the customer back to the confirmation URL provided by the merchant. This is not a mandatory step but a recommended one to improve the returning customer’s experience. | [optional]
+**token_id** | **string** | Generated customer token. This token will be used to create a new order for the subscription using the Create a New order using token API. |
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/ErrorV2.md

+# # ErrorV2
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**correlation_id** | **string** |  | [optional]
+**error_code** | **string** |  | [optional]
+**error_messages** | **string[]** |  | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/MerchantSession.md

+# # MerchantSession
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**client_token** | **string** | Client token to be passed to the JS client while initializing the JS SDK in the next step. |
+**payment_method_categories** | [**\KlarnaPayments\Client\Model\PaymentMethodCategory[]**](PaymentMethodCategory.md) | Available payment method categories for this particular session | [optional]
+**session_id** | **string** | ID of the created session. Please use this ID to share with Klarna for identifying any issues during integration. |
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/MerchantUrls.md

+# # MerchantUrls
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**confirmation** | **string** | URL of the merchant confirmation page. The consumer will be redirected back to the confirmation page if the consumer is sent to the redirect URL after placing the order. Insert {session.id} and/or {order.id} as placeholder to connect either of those IDs to the URL(max 2000 characters). | [optional]
+**notification** | **string** | URL for notifications on pending orders. Insert {session.id} and/or {order.id} as placeholder to connect either of those IDs to the URL (max 2000 characters). | [optional]
+**push** | **string** | URL that will be requested when an order is completed. Should be different than checkout and confirmation URLs. Insert {session.id} and/or {order.id} as placeholder to connect either of those IDs to the URL (max 2000 characters). | [optional]
+**authorization** | **string** | URL for receiving the authorization token when payment is completed. Used for Authorization Callback. | [optional]
+**app_return_url** | **string** | Mobile application return URL (app scheme with no action deeplink).  The customer will be redirected to this URL after third party redirects or redirects to the Klarna Application.  It is expected to open the integrating mobile application in it's last state (no state changes or deeplink navigations). | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/Options.md

+# # Options
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**color_border** | **string** | Color for the border of elements within the iFrame. Value should be a CSS hex color, e.g. \"#FF9900\" | [optional]
+**color_border_selected** | **string** | Color for the border of elements within the iFrame when selected by the customer. Value should be a CSS hex color, e.g. \"#FF9900\" | [optional]
+**color_details** | **string** | Color for the bullet points within the iFrame. Value should be a CSS hex color, e.g. \"#FF9900\" | [optional]
+**color_text** | **string** | Color for the texts within the iFrame. Value should be a CSS hex color, e.g. \"#FF9900\" | [optional]
+**radius_border** | **string** | Radius for the border of elements within the iFrame. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/Order.md

+# # Order
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**authorized_payment_method** | [**\KlarnaPayments\Client\Model\AuthorizedPaymentMethod**](AuthorizedPaymentMethod.md) |  | [optional]
+**fraud_status** | **string** | Fraud status for the order. Either ACCEPTED or PENDING. If ACCEPTED, the order could be captured. If PENDING, please wait till you receive the notification from Klarna in the notification URL that the order has been approved. You can find additional information [here](https://docs.klarna.com/payments/after-payments/order-management/more-actions/pending-orders/). | [optional]
+**order_id** | **string** | Unique order ID of the transaction. This ID will be used for all order management processes. |
+**redirect_url** | **string** | URL to redirect the customer to after placing the order. This is a Klarna URL to which the merchant should redirect the customer to. Klarna will place a cookie in the customer’s browser (if redirected) and redirect the customer back to the confirmation URL provided by the merchant. This is not a mandatory step but a recommended one to improve the returning customer’s experience. It is a spontaneous step and does not harm the customer’s experience. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/OrderLine.md

+# # OrderLine
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**image_url** | **string** | URL to an image that can be later embedded in communications between Klarna and the customer. (max 1024 characters).  A minimum of 250x250 px resolution is recommended for the image to look good in the Klarna app, and below 50x50 px won't even show. We recommend using a good sized image (650x650 px or more), however the file size must not exceed 12MB. | [optional]
+**merchant_data** | **string** | Used for storing merchant's internal order number or other reference. Pass through field. (max 1024 characters) | [optional]
+**name** | **string** | Descriptive name of the order line item. |
+**product_identifiers** | [**\KlarnaPayments\Client\Model\ProductIdentifiers**](ProductIdentifiers.md) |  | [optional]
+**product_url** | **string** | URL to the product in the merchant’s webshop that can be later used in communications between Klarna and the customer. (max 1024 characters) | [optional]
+**quantity** | **int** | Quantity of the order line item. Must be a non-negative number. |
+**quantity_unit** | **string** | Unit used to describe the quantity, e.g. kg, pcs, etc. If defined the value has to be 1-8 characters. | [optional]
+**reference** | **string** | Client facing article number, SKU or similar. Max length is 256 characters. | [optional]
+**tax_rate** | **int** | Tax rate of the order line. Non-negative value. The percentage value is represented with two implicit decimals. I.e 2000 = 20%. | [optional]
+**total_amount** | **int** | Total amount of the order line. Must be defined as minor units. Includes tax and discount. Eg: 2000=20 euros Value = (quantity x unit_price) - total_discount_amount.  (max value: 200000000) |
+**total_discount_amount** | **int** | Non-negative minor units. Includes tax. Eg: 500=5 euros | [optional]
+**total_tax_amount** | **int** | Total tax amount of the order line. Must be within ±1 of total_amount - total_amount 10000 / (10000 + tax_rate). Negative when type is discount. | [optional]
+**type** | **string** | Type of the order line item. | [optional]
+**unit_price** | **int** | Price for a single unit of the order line. Must be defined as minor units and exclude any discount. Typically including taxes, however some countries may include specific requirements, see [Tax handling guidelines](https://docs.klarna.com/payments/web-payments/additional-resources/error-handling-and-validations/tax-handling/) for further details. (max value: 200000000) |
+**subscription** | [**\KlarnaPayments\Client\Model\Subscription**](Subscription.md) |  | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/PaymentMethodCategory.md

+# # PaymentMethodCategory
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**asset_urls** | [**\KlarnaPayments\Client\Model\AssetUrls**](AssetUrls.md) |  | [optional]
+**identifier** | **string** | ID of the payment method category to be used while loading the widget later. The possible values are:<ul><li>klarna</li><li>pay_later</li><li>pay_now</li><li>pay_over_time</li><li>direct_bank_transfer</li><li>direct_debit</li></ul> | [optional]
+**name** | **string** | Name of the payment method category. These names are dynamic depending on what payment method is in the category. Using this dynamic asset will make sure that any copy update of Klarna will automatically be propagated, or any updates of included payment methods by you. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/ProductIdentifiers.md

+# # ProductIdentifiers
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**brand** | **string** | The product's brand name as generally recognized by consumers. If no brand is available for a product, do not supply any value. | [optional]
+**category_path** | **string** | The product's category path as used in the merchant's webshop. Include the full and most detailed category and separate the segments with ' > ' | [optional]
+**global_trade_item_number** | **string** | The product's Global Trade Item Number (GTIN). Common types of GTIN are EAN, ISBN or UPC. Exclude dashes and spaces, where possible | [optional]
+**manufacturer_part_number** | **string** | The product's Manufacturer Part Number (MPN), which - together with the brand - uniquely identifies a product. Only submit MPNs assigned by a manufacturer and use the most specific MPN possible | [optional]
+**color** | **string** | Color to be shown to the end customer (max 64 characters). | [optional]
+**size** | **string** | Size to be shown to the end customer (max 64 characters). | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/Session.md

+# # Session
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**acquiring_channel** | **string** | The acquiring channel in which the session takes place. Ecommerce is default unless specified. Any other values should be defined in the agreement. | [optional]
+**attachment** | [**\KlarnaPayments\Client\Model\Attachment**](Attachment.md) |  | [optional]
+**authorization_token** | **string** | Authorization token. | [optional] [readonly]
+**billing_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**client_token** | **string** | Token to be passed to the JS client | [optional] [readonly]
+**custom_payment_method_ids** | **string[]** | Promo codes - The array could be used to define which of the configured payment options within a payment category (pay_later, pay_over_time, etc.) should be shown for this purchase. Discuss with the delivery manager to know about the promo codes that will be configured for your account. The feature could also be used to provide promotional offers to specific customers (eg: 0% financing). Please be informed that the usage of this feature can have commercial implications. | [optional]
+**customer** | [**\KlarnaPayments\Client\Model\Customer**](Customer.md) |  | [optional]
+**design** | **string** | Design package to use in the session. This can only by used if a custom design has been implemented for Klarna Payments and agreed upon in the agreement. It might have a financial impact. Delivery manager will provide the value for the parameter. | [optional]
+**expires_at** | **\DateTime** | Session expiration date | [optional] [readonly]
+**locale** | **string** | Used to define the language and region of the customer. The locale follows the format of [RFC 1766](https://datatracker.ietf.org/doc/rfc1766/), meaning its value consists of language-country. Read more on **[Supported Locals and Currencies](https://docs.klarna.com/klarna-payments/in-depth-knowledge/puchase-countries-currencies-locales/)**. | [optional]
+**merchant_data** | **string** | Pass through field to send any information about the order to be used later for reference while retrieving the order details (max 6000 characters) | [optional]
+**merchant_reference1** | **string** | Used for storing merchant's internal order number or other reference. | [optional]
+**merchant_reference2** | **string** | Used for storing merchant's internal order number or other reference. The value is available in the settlement files. (max 255 characters). | [optional]
+**merchant_urls** | [**\KlarnaPayments\Client\Model\MerchantUrls**](MerchantUrls.md) |  | [optional]
+**options** | [**\KlarnaPayments\Client\Model\Options**](Options.md) |  | [optional]
+**order_amount** | **int** | Total amount of the order including tax and any available discounts. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. | [optional]
+**order_lines** | [**\KlarnaPayments\Client\Model\OrderLine[]**](OrderLine.md) | The array containing list of line items that are part of this order. Maximum of 1000 line items could be processed in a single order. | [optional]
+**order_tax_amount** | **int** | Total tax amount of the order. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. | [optional]
+**payment_method_categories** | [**\KlarnaPayments\Client\Model\PaymentMethodCategory[]**](PaymentMethodCategory.md) | Available payment method categories | [optional] [readonly]
+**purchase_country** | **string** | The purchase country of the customer. The billing country always overrides purchase country if the values are different. Formatted according to ISO 3166 alpha-2 standard, e.g. GB, SE, DE, US, etc. | [optional]
+**purchase_currency** | **string** | The purchase currency of the order. Formatted according to ISO 4217 standard, e.g. USD, EUR, SEK, GBP, etc. | [optional]
+**shipping_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**status** | **string** | The current status of the session. Possible values: 'complete', 'incomplete' where 'complete' is set when the order has been placed. | [optional] [readonly]
+**intent** | **string** | Intent for the session. The field is designed to let partners inform Klarna of the purpose of the customer’s session. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/SessionCreate.md

+# # SessionCreate
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**acquiring_channel** | **string** | The acquiring channel in which the session takes place. Ecommerce is default unless specified. Any other values should be defined in the agreement. | [optional]
+**attachment** | [**\KlarnaPayments\Client\Model\Attachment**](Attachment.md) |  | [optional]
+**authorization_token** | **string** | Authorization token. | [optional] [readonly]
+**billing_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**client_token** | **string** | Token to be passed to the JS client | [optional] [readonly]
+**custom_payment_method_ids** | **string[]** | Promo codes - The array could be used to define which of the configured payment options within a payment category (pay_later, pay_over_time, etc.) should be shown for this purchase. Discuss with the delivery manager to know about the promo codes that will be configured for your account. The feature could also be used to provide promotional offers to specific customers (eg: 0% financing). Please be informed that the usage of this feature can have commercial implications. | [optional]
+**customer** | [**\KlarnaPayments\Client\Model\Customer**](Customer.md) |  | [optional]
+**design** | **string** | Design package to use in the session. This can only by used if a custom design has been implemented for Klarna Payments and agreed upon in the agreement. It might have a financial impact. Delivery manager will provide the value for the parameter. | [optional]
+**expires_at** | **\DateTime** | Session expiration date | [optional] [readonly]
+**locale** | **string** | Used to define the language and region of the customer. The locale follows the format of [RFC 1766](https://datatracker.ietf.org/doc/rfc1766/), meaning its value consists of language-country. Default value is \"en-US\". Read more on **[Supported Locals and Currencies](https://docs.klarna.com/klarna-payments/in-depth-knowledge/puchase-countries-currencies-locales/)**. | [optional]
+**merchant_data** | **string** | Pass through field to send any information about the order to be used later for reference while retrieving the order details (max 6000 characters) | [optional]
+**merchant_reference1** | **string** | Used for storing merchant's internal order number or other reference. | [optional]
+**merchant_reference2** | **string** | Used for storing merchant's internal order number or other reference. The value is available in the settlement files. (max 255 characters). | [optional]
+**merchant_urls** | [**\KlarnaPayments\Client\Model\MerchantUrls**](MerchantUrls.md) |  | [optional]
+**options** | [**\KlarnaPayments\Client\Model\Options**](Options.md) |  | [optional]
+**order_amount** | **int** | Total amount of the order including tax and any available discounts. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. |
+**order_lines** | [**\KlarnaPayments\Client\Model\OrderLine[]**](OrderLine.md) | The array containing list of line items that are part of this order. Maximum of 1000 line items could be processed in a single order. |
+**order_tax_amount** | **int** | Total tax amount of the order. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. | [optional]
+**payment_method_categories** | [**\KlarnaPayments\Client\Model\PaymentMethodCategory[]**](PaymentMethodCategory.md) | Available payment method categories | [optional] [readonly]
+**purchase_country** | **string** | The purchase country of the customer. The billing country always overrides purchase country if the values are different. Formatted according to ISO 3166 alpha-2 standard, e.g. GB, SE, DE, US, etc. |
+**purchase_currency** | **string** | The purchase currency of the order. Formatted according to ISO 4217 standard, e.g. USD, EUR, SEK, GBP, etc. |
+**shipping_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**status** | **string** | The current status of the session. Possible values: 'complete', 'incomplete' where 'complete' is set when the order has been placed. | [optional] [readonly]
+**intent** | **string** | Intent for the session. The field is designed to let partners inform Klarna of the purpose of the customer’s session. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/SessionRead.md

+# # SessionRead
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**acquiring_channel** | **string** | The acquiring channel in which the session takes place. Ecommerce is default unless specified. Any other values should be defined in the agreement. | [optional]
+**attachment** | [**\KlarnaPayments\Client\Model\Attachment**](Attachment.md) |  | [optional]
+**authorization_token** | **string** | Authorization token. | [optional] [readonly]
+**billing_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**client_token** | **string** | Token to be passed to the JS client | [optional] [readonly]
+**custom_payment_method_ids** | **string[]** | Promo codes - The array could be used to define which of the configured payment options within a payment category (pay_later, pay_over_time, etc.) should be shown for this purchase. Discuss with the delivery manager to know about the promo codes that will be configured for your account. The feature could also be used to provide promotional offers to specific customers (eg: 0% financing). Please be informed that the usage of this feature can have commercial implications. | [optional]
+**customer** | [**\KlarnaPayments\Client\Model\CustomerRead**](CustomerRead.md) |  | [optional]
+**design** | **string** | Design package to use in the session. This can only by used if a custom design has been implemented for Klarna Payments and agreed upon in the agreement. It might have a financial impact. Delivery manager will provide the value for the parameter. | [optional]
+**expires_at** | **\DateTime** | Session expiration date | [optional] [readonly]
+**locale** | **string** | Used to define the language and region of the customer. The locale follows the format of [RFC 1766](https://datatracker.ietf.org/doc/rfc1766/), meaning its value consists of language-country. Read more on **[Supported Locals and Currencies](https://docs.klarna.com/klarna-payments/in-depth-knowledge/puchase-countries-currencies-locales/)**. | [optional]
+**merchant_data** | **string** | Pass through field to send any information about the order to be used later for reference while retrieving the order details (max 6000 characters) | [optional]
+**merchant_reference1** | **string** | Used for storing merchant's internal order number or other reference. | [optional]
+**merchant_reference2** | **string** | Used for storing merchant's internal order number or other reference. The value is available in the settlement files. (max 255 characters). | [optional]
+**merchant_urls** | [**\KlarnaPayments\Client\Model\MerchantUrls**](MerchantUrls.md) |  | [optional]
+**options** | [**\KlarnaPayments\Client\Model\Options**](Options.md) |  | [optional]
+**order_amount** | **int** | Total amount of the order including tax and any available discounts. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. | [optional]
+**order_lines** | [**\KlarnaPayments\Client\Model\OrderLine[]**](OrderLine.md) | The array containing list of line items that are part of this order. Maximum of 1000 line items could be processed in a single order. | [optional]
+**order_tax_amount** | **int** | Total tax amount of the order. The value should be in non-negative minor units. Eg: 25 Euros should be 2500. | [optional]
+**payment_method_categories** | [**\KlarnaPayments\Client\Model\PaymentMethodCategory[]**](PaymentMethodCategory.md) | Available payment method categories | [optional] [readonly]
+**purchase_country** | **string** | The purchase country of the customer. The billing country always overrides purchase country if the values are different. Formatted according to ISO 3166 alpha-2 standard, e.g. GB, SE, DE, US, etc. | [optional]
+**purchase_currency** | **string** | The purchase currency of the order. Formatted according to ISO 4217 standard, e.g. USD, EUR, SEK, GBP, etc. | [optional]
+**shipping_address** | [**\KlarnaPayments\Client\Model\Address**](Address.md) |  | [optional]
+**status** | **string** | The current status of the session. Possible values: 'complete', 'incomplete' where 'complete' is set when the order has been placed. | [optional] [readonly]
+**intent** | **string** | Intent for the session. The field is designed to let partners inform Klarna of the purpose of the customer’s session. | [optional]
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

docs/Model/Subscription.md

+# # Subscription
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**name** | **string** | The name of the subscription product |
+**interval** | **string** | The cadence unit for this. |
+**interval_count** | **int** | The number of intervals |
+
+[[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)

git_push.sh

+#!/bin/sh
+# ref: https://help.github.com/articles/adding-an-existing-project-to-github-using-the-command-line/
+#
+# Usage example: /bin/sh ./git_push.sh wing328 openapi-petstore-perl "minor update" "gitlab.com"
+
+git_user_id=$1
+git_repo_id=$2
+release_note=$3
+git_host=$4
+
+if [ "$git_host" = "" ]; then
+    git_host="github.com"
+    echo "[INFO] No command line input provided. Set \$git_host to $git_host"
+fi
+
+if [ "$git_user_id" = "" ]; then
+    git_user_id="GIT_USER_ID"
+    echo "[INFO] No command line input provided. Set \$git_user_id to $git_user_id"
+fi
+
+if [ "$git_repo_id" = "" ]; then
+    git_repo_id="GIT_REPO_ID"
+    echo "[INFO] No command line input provided. Set \$git_repo_id to $git_repo_id"
+fi
+
+if [ "$release_note" = "" ]; then
+    release_note="Minor update"
+    echo "[INFO] No command line input provided. Set \$release_note to $release_note"
+fi
+
+# Initialize the local directory as a Git repository
+git init
+
+# Adds the files in the local repository and stages them for commit.
+git add .
+
+# Commits the tracked changes and prepares them to be pushed to a remote repository.
+git commit -m "$release_note"
+
+# Sets the new remote
+git_remote=$(git remote)
+if [ "$git_remote" = "" ]; then # git remote not defined
+
+    if [ "$GIT_TOKEN" = "" ]; then
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
+        git remote add origin https://${git_host}/${git_user_id}/${git_repo_id}.git
+    else
+        git remote add origin https://${git_user_id}:"${GIT_TOKEN}"@${git_host}/${git_user_id}/${git_repo_id}.git
+    fi
+
+fi
+
+git pull origin master
+
+# Pushes (Forces) the changes in the local repository up to the remote repository
+echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
+git push origin master 2>&1 | grep -v 'To https'

lib/ApiException.php

+<?php
+/**
+ * ApiException
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+namespace KlarnaPayments\Client;
+
+use \Exception;
+
+/**
+ * ApiException Class Doc Comment
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+class ApiException extends Exception
+{
+    /**
+     * The HTTP body of the server response either as Json or string.
+     *
+     * @var \stdClass|string|null
+     */
+    protected $responseBody;
+
+    /**
+     * The HTTP header of the server response.
+     *
+     * @var string[][]|null
+     */
+    protected $responseHeaders;
+
+    /**
+     * The deserialized response object
+     *
+     * @var \stdClass|string|null
+     */
+    protected $responseObject;
+
+    /**
+     * Constructor
+     *
+     * @param string                $message         Error message
+     * @param int                   $code            HTTP status code
+     * @param string[][]|null       $responseHeaders HTTP response header
+     * @param \stdClass|string|null $responseBody    HTTP decoded body of the server response either as \stdClass or string
+     */
+    public function __construct($message = "", $code = 0, $responseHeaders = [], $responseBody = null)
+    {
+        parent::__construct($message, $code);
+        $this->responseHeaders = $responseHeaders;
+        $this->responseBody = $responseBody;
+    }
+
+    /**
+     * Gets the HTTP response header
+     *
+     * @return string[][]|null HTTP response header
+     */
+    public function getResponseHeaders()
+    {
+        return $this->responseHeaders;
+    }
+
+    /**
+     * Gets the HTTP body of the server response either as Json or string
+     *
+     * @return \stdClass|string|null HTTP body of the server response either as \stdClass or string
+     */
+    public function getResponseBody()
+    {
+        return $this->responseBody;
+    }
+
+    /**
+     * Sets the deserialized response object (during deserialization)
+     *
+     * @param mixed $obj Deserialized response object
+     *
+     * @return void
+     */
+    public function setResponseObject($obj)
+    {
+        $this->responseObject = $obj;
+    }
+
+    /**
+     * Gets the deserialized response object (during deserialization)
+     *
+     * @return mixed the deserialized response object
+     */
+    public function getResponseObject()
+    {
+        return $this->responseObject;
+    }
+}

lib/HeaderSelector.php

+<?php
+/**
+ * HeaderSelector
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+namespace KlarnaPayments\Client;
+
+/**
+ * HeaderSelector Class Doc Comment
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+class HeaderSelector
+{
+    /**
+     * @param string[] $accept
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
+     */
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
+    {
+        $headers = [];
+
+        $accept = $this->selectAcceptHeader($accept);
+        if ($accept !== null) {
+            $headers['Accept'] = $accept;
+        }
+
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
+
+            $headers['Content-Type'] = $contentType;
+        }
+
+        return $headers;
+    }
+
+    /**
+     * Return the header 'Accept' based on an array of Accept provided.
+     *
+     * @param string[] $accept Array of header
+     *
+     * @return null|string Accept (e.g. application/json)
+     */
+    private function selectAcceptHeader(array $accept): ?string
+    {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
+            return null;
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = $this->selectJsonMimeList($accept);
+        if (count($headersWithJson) === 0) {
+            return implode(',', $accept);
+        }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Detects whether a string contains a valid JSON mime type
+    *
+    * @param string $searchString
+    * @return bool
+    */
+    public function isJsonMime(string $searchString): bool
+    {
+        return preg_match('~^application/(json|[\w!#$&.+-^_]+\+json)\s*(;|$)~', $searchString) === 1;
+    }
+    
+    /**
+    * Select all items from a list containing a JSON mime type
+    *
+    * @param array $mimeList
+    * @return array
+    */
+    private function selectJsonMimeList(array $mimeList): array {
+        $jsonMimeList = [];
+        foreach ($mimeList as $mime) {
+            if($this->isJsonMime($mime)) {
+                $jsonMimeList[] = $mime;
+            }
+        }
+        return $jsonMimeList;
+    }
+
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
+    }
+
+    /**
+     * Given an Accept header, returns an associative array splitting the header and its weight
+     *
+     * @param string $header "Accept" Header
+     *
+     * @return array with the header and its weight
+     */
+    private function getHeaderAndWeight(string $header): array
+    {
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
+        } else {
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
+        }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
+    }
+}

lib/Model/ModelInterface.php

+<?php
+/**
+ * ModelInterface
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client\Model
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+namespace KlarnaPayments\Client\Model;
+
+/**
+ * Interface abstracting model access.
+ *
+ * @package KlarnaPayments\Client\Model
+ * @author  OpenAPI Generator team
+ */
+interface ModelInterface
+{
+    /**
+     * The original name of the model.
+     *
+     * @return string
+     */
+    public function getModelName();
+
+    /**
+     * Array of property to type mappings. Used for (de)serialization
+     *
+     * @return array
+     */
+    public static function openAPITypes();
+
+    /**
+     * Array of property to format mappings. Used for (de)serialization
+     *
+     * @return array
+     */
+    public static function openAPIFormats();
+
+    /**
+     * Array of attributes where the key is the local name, and the value is the original name
+     *
+     * @return array
+     */
+    public static function attributeMap();
+
+    /**
+     * Array of attributes to setter functions (for deserialization of responses)
+     *
+     * @return array
+     */
+    public static function setters();
+
+    /**
+     * Array of attributes to getter functions (for serialization of requests)
+     *
+     * @return array
+     */
+    public static function getters();
+
+    /**
+     * Show all the invalid properties with reasons.
+     *
+     * @return array
+     */
+    public function listInvalidProperties();
+
+    /**
+     * Validate all the properties in the model
+     * return true if all passed
+     *
+     * @return bool
+     */
+    public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
+}

phpunit.xml.dist

+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="./vendor/autoload.php" colors="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
+  <coverage processUncoveredFiles="true">
+    <include>
+      <directory suffix=".php">./lib/Api</directory>
+      <directory suffix=".php">./lib/Model</directory>
+    </include>
+  </coverage>
+  <testsuites>
+    <testsuite name="tests">
+      <directory>./test/Api</directory>
+      <directory>./test/Model</directory>
+    </testsuite>
+  </testsuites>
+  <php>
+    <ini name="error_reporting" value="E_ALL"/>
+  </php>
+</phpunit>

test/Api/DefaultApiTest.php

+<?php
+/**
+ * DefaultApiTest
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the endpoint.
+ */
+
+namespace KlarnaPayments\Client\Test\Api;
+
+use \KlarnaPayments\Client\Configuration;
+use \KlarnaPayments\Client\ApiException;
+use \KlarnaPayments\Client\ObjectSerializer;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * DefaultApiTest Class Doc Comment
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+class DefaultApiTest extends TestCase
+{
+
+    /**
+     * Setup before running any test cases
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test case for cancelAuthorization
+     *
+     * Cancel an authorization.
+     *
+     */
+    public function testCancelAuthorization()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test case for createCreditSession
+     *
+     * Create a session.
+     *
+     */
+    public function testCreateCreditSession()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test case for createOrder
+     *
+     * Create an order.
+     *
+     */
+    public function testCreateOrder()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test case for purchaseToken
+     *
+     * Generate a customer token.
+     *
+     */
+    public function testPurchaseToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test case for readCreditSession
+     *
+     * Get details about a session.
+     *
+     */
+    public function testReadCreditSession()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test case for updateCreditSession
+     *
+     * Update a session.
+     *
+     */
+    public function testUpdateCreditSession()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/AddressTest.php

+<?php
+/**
+ * AddressTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * AddressTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Address
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class AddressTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Address"
+     */
+    public function testAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "attention"
+     */
+    public function testPropertyAttention()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "city"
+     */
+    public function testPropertyCity()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "country"
+     */
+    public function testPropertyCountry()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "email"
+     */
+    public function testPropertyEmail()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "family_name"
+     */
+    public function testPropertyFamilyName()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "given_name"
+     */
+    public function testPropertyGivenName()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "organization_name"
+     */
+    public function testPropertyOrganizationName()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "phone"
+     */
+    public function testPropertyPhone()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "postal_code"
+     */
+    public function testPropertyPostalCode()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "region"
+     */
+    public function testPropertyRegion()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "street_address"
+     */
+    public function testPropertyStreetAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "street_address2"
+     */
+    public function testPropertyStreetAddress2()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "title"
+     */
+    public function testPropertyTitle()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/AssetUrlsTest.php

+<?php
+/**
+ * AssetUrlsTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * AssetUrlsTest Class Doc Comment
+ *
+ * @category    Class
+ * @description AssetUrls
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class AssetUrlsTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "AssetUrls"
+     */
+    public function testAssetUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "descriptive"
+     */
+    public function testPropertyDescriptive()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "standard"
+     */
+    public function testPropertyStandard()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/AttachmentTest.php

+<?php
+/**
+ * AttachmentTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * AttachmentTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Attachment
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class AttachmentTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Attachment"
+     */
+    public function testAttachment()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "body"
+     */
+    public function testPropertyBody()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "content_type"
+     */
+    public function testPropertyContentType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/AuthorizedPaymentMethodTest.php

+<?php
+/**
+ * AuthorizedPaymentMethodTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * AuthorizedPaymentMethodTest Class Doc Comment
+ *
+ * @category    Class
+ * @description AuthorizedPaymentMethod
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class AuthorizedPaymentMethodTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "AuthorizedPaymentMethod"
+     */
+    public function testAuthorizedPaymentMethod()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "number_of_days"
+     */
+    public function testPropertyNumberOfDays()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "number_of_installments"
+     */
+    public function testPropertyNumberOfInstallments()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "type"
+     */
+    public function testPropertyType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/CreateOrderRequestTest.php

+<?php
+/**
+ * CreateOrderRequestTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * CreateOrderRequestTest Class Doc Comment
+ *
+ * @category    Class
+ * @description CreateOrderRequest
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class CreateOrderRequestTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "CreateOrderRequest"
+     */
+    public function testCreateOrderRequest()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "authorization_token"
+     */
+    public function testPropertyAuthorizationToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "auto_capture"
+     */
+    public function testPropertyAutoCapture()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "billing_address"
+     */
+    public function testPropertyBillingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "custom_payment_method_ids"
+     */
+    public function testPropertyCustomPaymentMethodIds()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "customer"
+     */
+    public function testPropertyCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "locale"
+     */
+    public function testPropertyLocale()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_data"
+     */
+    public function testPropertyMerchantData()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference1"
+     */
+    public function testPropertyMerchantReference1()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference2"
+     */
+    public function testPropertyMerchantReference2()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_urls"
+     */
+    public function testPropertyMerchantUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_amount"
+     */
+    public function testPropertyOrderAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_lines"
+     */
+    public function testPropertyOrderLines()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_tax_amount"
+     */
+    public function testPropertyOrderTaxAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "payment_method_categories"
+     */
+    public function testPropertyPaymentMethodCategories()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_country"
+     */
+    public function testPropertyPurchaseCountry()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_currency"
+     */
+    public function testPropertyPurchaseCurrency()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "shipping_address"
+     */
+    public function testPropertyShippingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "status"
+     */
+    public function testPropertyStatus()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/CustomerReadCreateTokenTest.php

+<?php
+/**
+ * CustomerReadCreateTokenTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * CustomerReadCreateTokenTest Class Doc Comment
+ *
+ * @category    Class
+ * @description CustomerReadCreateToken
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class CustomerReadCreateTokenTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "CustomerReadCreateToken"
+     */
+    public function testCustomerReadCreateToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "date_of_birth"
+     */
+    public function testPropertyDateOfBirth()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "gender"
+     */
+    public function testPropertyGender()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/CustomerReadTest.php

+<?php
+/**
+ * CustomerReadTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * CustomerReadTest Class Doc Comment
+ *
+ * @category    Class
+ * @description CustomerRead
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class CustomerReadTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "CustomerRead"
+     */
+    public function testCustomerRead()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "date_of_birth"
+     */
+    public function testPropertyDateOfBirth()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "gender"
+     */
+    public function testPropertyGender()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "organization_entity_type"
+     */
+    public function testPropertyOrganizationEntityType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "organization_registration_id"
+     */
+    public function testPropertyOrganizationRegistrationId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "title"
+     */
+    public function testPropertyTitle()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "type"
+     */
+    public function testPropertyType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "vat_id"
+     */
+    public function testPropertyVatId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/CustomerTest.php

+<?php
+/**
+ * CustomerTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * CustomerTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Customer
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class CustomerTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Customer"
+     */
+    public function testCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "date_of_birth"
+     */
+    public function testPropertyDateOfBirth()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "gender"
+     */
+    public function testPropertyGender()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "last_four_ssn"
+     */
+    public function testPropertyLastFourSsn()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "national_identification_number"
+     */
+    public function testPropertyNationalIdentificationNumber()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "organization_entity_type"
+     */
+    public function testPropertyOrganizationEntityType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "organization_registration_id"
+     */
+    public function testPropertyOrganizationRegistrationId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "title"
+     */
+    public function testPropertyTitle()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "type"
+     */
+    public function testPropertyType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "vat_id"
+     */
+    public function testPropertyVatId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/CustomerTokenCreationRequestTest.php

+<?php
+/**
+ * CustomerTokenCreationRequestTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * CustomerTokenCreationRequestTest Class Doc Comment
+ *
+ * @category    Class
+ * @description CustomerTokenCreationRequest
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class CustomerTokenCreationRequestTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "CustomerTokenCreationRequest"
+     */
+    public function testCustomerTokenCreationRequest()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "billing_address"
+     */
+    public function testPropertyBillingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "customer"
+     */
+    public function testPropertyCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "description"
+     */
+    public function testPropertyDescription()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "intended_use"
+     */
+    public function testPropertyIntendedUse()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "locale"
+     */
+    public function testPropertyLocale()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_country"
+     */
+    public function testPropertyPurchaseCountry()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_currency"
+     */
+    public function testPropertyPurchaseCurrency()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/CustomerTokenCreationResponseTest.php

+<?php
+/**
+ * CustomerTokenCreationResponseTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * CustomerTokenCreationResponseTest Class Doc Comment
+ *
+ * @category    Class
+ * @description CustomerTokenCreationResponse
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class CustomerTokenCreationResponseTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "CustomerTokenCreationResponse"
+     */
+    public function testCustomerTokenCreationResponse()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "billing_address"
+     */
+    public function testPropertyBillingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "customer"
+     */
+    public function testPropertyCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "payment_method_reference"
+     */
+    public function testPropertyPaymentMethodReference()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "redirect_url"
+     */
+    public function testPropertyRedirectUrl()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "token_id"
+     */
+    public function testPropertyTokenId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/ErrorV2Test.php

+<?php
+/**
+ * ErrorV2Test
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * ErrorV2Test Class Doc Comment
+ *
+ * @category    Class
+ * @description ErrorV2
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class ErrorV2Test extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "ErrorV2"
+     */
+    public function testErrorV2()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "correlation_id"
+     */
+    public function testPropertyCorrelationId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "error_code"
+     */
+    public function testPropertyErrorCode()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "error_messages"
+     */
+    public function testPropertyErrorMessages()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/MerchantSessionTest.php

+<?php
+/**
+ * MerchantSessionTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * MerchantSessionTest Class Doc Comment
+ *
+ * @category    Class
+ * @description MerchantSession
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class MerchantSessionTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "MerchantSession"
+     */
+    public function testMerchantSession()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "client_token"
+     */
+    public function testPropertyClientToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "payment_method_categories"
+     */
+    public function testPropertyPaymentMethodCategories()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "session_id"
+     */
+    public function testPropertySessionId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/MerchantUrlsTest.php

+<?php
+/**
+ * MerchantUrlsTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * MerchantUrlsTest Class Doc Comment
+ *
+ * @category    Class
+ * @description MerchantUrls
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class MerchantUrlsTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "MerchantUrls"
+     */
+    public function testMerchantUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "confirmation"
+     */
+    public function testPropertyConfirmation()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "notification"
+     */
+    public function testPropertyNotification()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "push"
+     */
+    public function testPropertyPush()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "authorization"
+     */
+    public function testPropertyAuthorization()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "app_return_url"
+     */
+    public function testPropertyAppReturnUrl()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/OptionsTest.php

+<?php
+/**
+ * OptionsTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * OptionsTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Options
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class OptionsTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Options"
+     */
+    public function testOptions()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "color_border"
+     */
+    public function testPropertyColorBorder()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "color_border_selected"
+     */
+    public function testPropertyColorBorderSelected()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "color_details"
+     */
+    public function testPropertyColorDetails()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "color_text"
+     */
+    public function testPropertyColorText()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "radius_border"
+     */
+    public function testPropertyRadiusBorder()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/OrderLineTest.php

+<?php
+/**
+ * OrderLineTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * OrderLineTest Class Doc Comment
+ *
+ * @category    Class
+ * @description OrderLine
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class OrderLineTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "OrderLine"
+     */
+    public function testOrderLine()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "image_url"
+     */
+    public function testPropertyImageUrl()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_data"
+     */
+    public function testPropertyMerchantData()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "name"
+     */
+    public function testPropertyName()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "product_identifiers"
+     */
+    public function testPropertyProductIdentifiers()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "product_url"
+     */
+    public function testPropertyProductUrl()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "quantity"
+     */
+    public function testPropertyQuantity()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "quantity_unit"
+     */
+    public function testPropertyQuantityUnit()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "reference"
+     */
+    public function testPropertyReference()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "tax_rate"
+     */
+    public function testPropertyTaxRate()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "total_amount"
+     */
+    public function testPropertyTotalAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "total_discount_amount"
+     */
+    public function testPropertyTotalDiscountAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "total_tax_amount"
+     */
+    public function testPropertyTotalTaxAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "type"
+     */
+    public function testPropertyType()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "unit_price"
+     */
+    public function testPropertyUnitPrice()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "subscription"
+     */
+    public function testPropertySubscription()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/OrderTest.php

+<?php
+/**
+ * OrderTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * OrderTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Order
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class OrderTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Order"
+     */
+    public function testOrder()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "authorized_payment_method"
+     */
+    public function testPropertyAuthorizedPaymentMethod()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "fraud_status"
+     */
+    public function testPropertyFraudStatus()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_id"
+     */
+    public function testPropertyOrderId()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "redirect_url"
+     */
+    public function testPropertyRedirectUrl()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/PaymentMethodCategoryTest.php

+<?php
+/**
+ * PaymentMethodCategoryTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * PaymentMethodCategoryTest Class Doc Comment
+ *
+ * @category    Class
+ * @description PaymentMethodCategory
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class PaymentMethodCategoryTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "PaymentMethodCategory"
+     */
+    public function testPaymentMethodCategory()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "asset_urls"
+     */
+    public function testPropertyAssetUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "identifier"
+     */
+    public function testPropertyIdentifier()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "name"
+     */
+    public function testPropertyName()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/ProductIdentifiersTest.php

+<?php
+/**
+ * ProductIdentifiersTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * ProductIdentifiersTest Class Doc Comment
+ *
+ * @category    Class
+ * @description ProductIdentifiers
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class ProductIdentifiersTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "ProductIdentifiers"
+     */
+    public function testProductIdentifiers()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "brand"
+     */
+    public function testPropertyBrand()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "category_path"
+     */
+    public function testPropertyCategoryPath()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "global_trade_item_number"
+     */
+    public function testPropertyGlobalTradeItemNumber()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "manufacturer_part_number"
+     */
+    public function testPropertyManufacturerPartNumber()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "color"
+     */
+    public function testPropertyColor()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "size"
+     */
+    public function testPropertySize()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/SessionCreateTest.php

+<?php
+/**
+ * SessionCreateTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * SessionCreateTest Class Doc Comment
+ *
+ * @category    Class
+ * @description SessionCreate
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class SessionCreateTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "SessionCreate"
+     */
+    public function testSessionCreate()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "acquiring_channel"
+     */
+    public function testPropertyAcquiringChannel()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "attachment"
+     */
+    public function testPropertyAttachment()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "authorization_token"
+     */
+    public function testPropertyAuthorizationToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "billing_address"
+     */
+    public function testPropertyBillingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "client_token"
+     */
+    public function testPropertyClientToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "custom_payment_method_ids"
+     */
+    public function testPropertyCustomPaymentMethodIds()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "customer"
+     */
+    public function testPropertyCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "design"
+     */
+    public function testPropertyDesign()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "expires_at"
+     */
+    public function testPropertyExpiresAt()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "locale"
+     */
+    public function testPropertyLocale()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_data"
+     */
+    public function testPropertyMerchantData()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference1"
+     */
+    public function testPropertyMerchantReference1()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference2"
+     */
+    public function testPropertyMerchantReference2()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_urls"
+     */
+    public function testPropertyMerchantUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "options"
+     */
+    public function testPropertyOptions()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_amount"
+     */
+    public function testPropertyOrderAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_lines"
+     */
+    public function testPropertyOrderLines()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_tax_amount"
+     */
+    public function testPropertyOrderTaxAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "payment_method_categories"
+     */
+    public function testPropertyPaymentMethodCategories()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_country"
+     */
+    public function testPropertyPurchaseCountry()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_currency"
+     */
+    public function testPropertyPurchaseCurrency()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "shipping_address"
+     */
+    public function testPropertyShippingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "status"
+     */
+    public function testPropertyStatus()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "intent"
+     */
+    public function testPropertyIntent()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/SessionReadTest.php

+<?php
+/**
+ * SessionReadTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * SessionReadTest Class Doc Comment
+ *
+ * @category    Class
+ * @description SessionRead
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class SessionReadTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "SessionRead"
+     */
+    public function testSessionRead()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "acquiring_channel"
+     */
+    public function testPropertyAcquiringChannel()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "attachment"
+     */
+    public function testPropertyAttachment()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "authorization_token"
+     */
+    public function testPropertyAuthorizationToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "billing_address"
+     */
+    public function testPropertyBillingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "client_token"
+     */
+    public function testPropertyClientToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "custom_payment_method_ids"
+     */
+    public function testPropertyCustomPaymentMethodIds()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "customer"
+     */
+    public function testPropertyCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "design"
+     */
+    public function testPropertyDesign()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "expires_at"
+     */
+    public function testPropertyExpiresAt()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "locale"
+     */
+    public function testPropertyLocale()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_data"
+     */
+    public function testPropertyMerchantData()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference1"
+     */
+    public function testPropertyMerchantReference1()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference2"
+     */
+    public function testPropertyMerchantReference2()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_urls"
+     */
+    public function testPropertyMerchantUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "options"
+     */
+    public function testPropertyOptions()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_amount"
+     */
+    public function testPropertyOrderAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_lines"
+     */
+    public function testPropertyOrderLines()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_tax_amount"
+     */
+    public function testPropertyOrderTaxAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "payment_method_categories"
+     */
+    public function testPropertyPaymentMethodCategories()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_country"
+     */
+    public function testPropertyPurchaseCountry()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_currency"
+     */
+    public function testPropertyPurchaseCurrency()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "shipping_address"
+     */
+    public function testPropertyShippingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "status"
+     */
+    public function testPropertyStatus()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "intent"
+     */
+    public function testPropertyIntent()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/SessionTest.php

+<?php
+/**
+ * SessionTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * SessionTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Session
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class SessionTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Session"
+     */
+    public function testSession()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "acquiring_channel"
+     */
+    public function testPropertyAcquiringChannel()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "attachment"
+     */
+    public function testPropertyAttachment()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "authorization_token"
+     */
+    public function testPropertyAuthorizationToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "billing_address"
+     */
+    public function testPropertyBillingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "client_token"
+     */
+    public function testPropertyClientToken()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "custom_payment_method_ids"
+     */
+    public function testPropertyCustomPaymentMethodIds()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "customer"
+     */
+    public function testPropertyCustomer()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "design"
+     */
+    public function testPropertyDesign()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "expires_at"
+     */
+    public function testPropertyExpiresAt()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "locale"
+     */
+    public function testPropertyLocale()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_data"
+     */
+    public function testPropertyMerchantData()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference1"
+     */
+    public function testPropertyMerchantReference1()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_reference2"
+     */
+    public function testPropertyMerchantReference2()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "merchant_urls"
+     */
+    public function testPropertyMerchantUrls()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "options"
+     */
+    public function testPropertyOptions()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_amount"
+     */
+    public function testPropertyOrderAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_lines"
+     */
+    public function testPropertyOrderLines()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "order_tax_amount"
+     */
+    public function testPropertyOrderTaxAmount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "payment_method_categories"
+     */
+    public function testPropertyPaymentMethodCategories()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_country"
+     */
+    public function testPropertyPurchaseCountry()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "purchase_currency"
+     */
+    public function testPropertyPurchaseCurrency()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "shipping_address"
+     */
+    public function testPropertyShippingAddress()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "status"
+     */
+    public function testPropertyStatus()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "intent"
+     */
+    public function testPropertyIntent()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}

test/Model/SubscriptionTest.php

+<?php
+/**
+ * SubscriptionTest
+ *
+ * PHP version 7.4
+ *
+ * @category Class
+ * @package  KlarnaPayments\Client
+ * @author   OpenAPI Generator team
+ * @link     https://openapi-generator.tech
+ */
+
+/**
+ * Klarna Payments API V1
+ *
+ * The payments API is used to create a session to offer Klarna's payment methods as part of your checkout. As soon as the purchase is completed the order should be read and handled using the [`Order Management API`](https://docs.klarna.com/api/ordermanagement).  **Note:** Examples provided in this section includes full payloads, including all supported fields, required and optionals. In order to implement a best in class request we recommend you don't include customer details when initiating a payment session. Refer to [Initiate a payment](https://docs.klarna.com/klarna-payments/integrate-with-klarna-payments/step-1-initiate-a-payment/) section for further details.  Read more on [Klarna payments](https://docs.klarna.com/klarna-payments/).
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://openapi-generator.tech
+ * Generator version: 7.12.0
+ */
+
+/**
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Please update the test case below to test the model.
+ */
+
+namespace KlarnaPayments\Client\Test\Model;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * SubscriptionTest Class Doc Comment
+ *
+ * @category    Class
+ * @description Subscription
+ * @package     KlarnaPayments\Client
+ * @author      OpenAPI Generator team
+ * @link        https://openapi-generator.tech
+ */
+class SubscriptionTest extends TestCase
+{
+
+    /**
+     * Setup before running any test case
+     */
+    public static function setUpBeforeClass(): void
+    {
+    }
+
+    /**
+     * Setup before running each test case
+     */
+    public function setUp(): void
+    {
+    }
+
+    /**
+     * Clean up after running each test case
+     */
+    public function tearDown(): void
+    {
+    }
+
+    /**
+     * Clean up after running all test cases
+     */
+    public static function tearDownAfterClass(): void
+    {
+    }
+
+    /**
+     * Test "Subscription"
+     */
+    public function testSubscription()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "name"
+     */
+    public function testPropertyName()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "interval"
+     */
+    public function testPropertyInterval()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+
+    /**
+     * Test attribute "interval_count"
+     */
+    public function testPropertyIntervalCount()
+    {
+        // TODO: implement
+        self::markTestIncomplete('Not implemented');
+    }
+}