fix: sync PaymentMethodsType enum with Flow API spec

lib/Checkout/Payments/Sessions/PaymentMethodsType.php

@@ -2,18 +2,64 @@
 
 namespace Checkout\Payments\Sessions;
 
+/**
+ * The type of payment method that can be enabled or disabled for a payment session.
+ *
+ * This is a consolidated list covering every payment method the Flow API accepts for
+ * enabled_payment_methods / disabled_payment_methods. Constants marked @deprecated are no
+ * longer part of the specification but are kept for backward compatibility.
+ */
 class PaymentMethodsType
 {
+    public $ALIPAY_CN = "alipay_cn";
+    public $ALIPAY_HK = "alipay_hk";
+    public $ALMA = "alma";
     public $APPLEPAY = "applepay";
     public $BANCONTACT = "bancontact";
+    public $BENEFIT = "benefit";
+    public $BIZUM = "bizum";
     public $CARD = "card";
+    public $DANA = "dana";
     public $EPS = "eps";
+
+    /**
+     * @deprecated No longer part of the specification.
+     */
     public $GIROPAY = "giropay";
+    public $GCASH = "gcash";
     public $GOOGLEPAY = "googlepay";
     public $IDEAL = "ideal";
+    public $KAKAOPAY = "kakaopay";
+    public $KLARNA = "klarna";
     public $KNET = "knet";
+    public $MBWAY = "mbway";
+    public $MOBILEPAY = "mobilepay";
     public $MULTIBANCO = "multibanco";
+    public $OCTOPUS = "octopus";
     public $PRZELEWY24 = "p24";
+    public $PAYNOW = "paynow";
     public $PAYPAL = "paypal";
+    public $PLAID = "plaid";
+    public $QPAY = "qpay";
+
+    /**
+     * Fully supported by the API but deliberately unlisted in the public specification, so that
+     * merchants do not disable Remember Me en masse. Do not remove it as an unspecified value.
+     */
+    public $REMEMBER_ME = "remember_me";
+    public $SEPA = "sepa";
+
+    /**
+     * @deprecated No longer part of the specification.
+     */
     public $SOFORT = "sofort";
+    public $STCPAY = "stcpay";
+    public $STORED_CARD = "stored_card";
+    public $TABBY = "tabby";
+    public $TAMARA = "tamara";
+    public $TNG = "tng";
+    public $TRUEMONEY = "truemoney";
+    public $TWINT = "twint";
+    public $VIPPS = "vipps";
+    public $WECHATPAY = "wechatpay";
 }