Use constants instead of static strings

src/Stripe.net/Constants/AccountType.cs

@@ -2,8 +2,8 @@ namespace Stripe
 {
     public static class AccountType
     {
-        public static string Custom => "custom";
+        public const string Custom = "custom";
 
-        public static string Standard => "standard";
+        public const string Standard = "standard";
     }
 }

src/Stripe.net/Constants/BankAccountHolderType.cs

@@ -2,8 +2,8 @@ namespace Stripe
 {
     public static class BankAccountHolderType
     {
-        public static string Individual => "individual";
+        public const string Individual = "individual";
 
-        public static string Company => "company";
+        public const string Company = "company";
     }
 }

src/Stripe.net/Constants/FilePurpose.cs

@@ -2,18 +2,18 @@ namespace Stripe
 {
     public static class FilePurpose
     {
-        public static string BusinessLogo => "business_logo";
+        public const string BusinessLogo = "business_logo";
 
-        public static string DisputeEvidence => "dispute_evidence";
+        public const string DisputeEvidence = "dispute_evidence";
 
-        public static string IdentityDocument => "identity_document";
+        public const string IdentityDocument = "identity_document";
 
-        public static string IncorporationArticle => "incorporation_article";
+        public const string IncorporationArticle = "incorporation_article";
 
-        public static string IncorporationDocument => "incorporation_document";
+        public const string IncorporationDocument = "incorporation_document";
 
-        public static string PaymentProviderTransfer => "payment_provider_transfer";
+        public const string PaymentProviderTransfer = "payment_provider_transfer";
 
-        public static string ProductFeed => "product_feed";
+        public const string ProductFeed = "product_feed";
     }
 }

src/Stripe.net/Constants/PlanIntervals.cs

@@ -2,12 +2,12 @@ namespace Stripe
 {
     public static class PlanIntervals
     {
-        public static string Day => "day";
+        public const string Day = "day";
 
-        public static string Week => "week";
+        public const string Week = "week";
 
-        public static string Month => "month";
+        public const string Month = "month";
 
-        public static string Year => "year";
+        public const string Year = "year";
     }
 }

src/Stripe.net/Constants/RefundReasons.cs

@@ -2,12 +2,12 @@ namespace Stripe
 {
     public static class RefundReasons
     {
-        public static string Unknown => null;
+        public const string Unknown = null;
 
-        public static string Duplicate => "duplicate";
+        public const string Duplicate = "duplicate";
 
-        public static string Fraudulent => "fraudulent";
+        public const string Fraudulent = "fraudulent";
 
-        public static string RequestedByCustomer => "requested_by_customer";
+        public const string RequestedByCustomer = "requested_by_customer";
     }
 }

src/Stripe.net/Constants/SourceFlow.cs

@@ -2,12 +2,12 @@ namespace Stripe
 {
     public static class SourceFlow
     {
-        public static string Redirect => "redirect";
+        public const string Redirect = "redirect";
 
-        public static string Receiver => "receiver";
+        public const string Receiver = "receiver";
 
-        public static string CodeVerification => "code_verification";
+        public const string CodeVerification = "code_verification";
 
-        public static string None => "none";
+        public const string None = "none";
     }
 }

src/Stripe.net/Constants/SourceType.cs

@@ -2,32 +2,32 @@ namespace Stripe
 {
     public static class SourceType
     {
-        public static string AchCreditTransfer => "ach_credit_transfer";
+        public const string AchCreditTransfer = "ach_credit_transfer";
 
-        public static string AchDebit => "ach_debit";
+        public const string AchDebit = "ach_debit";
 
-        public static string Alipay => "alipay";
+        public const string Alipay = "alipay";
 
-        public static string Bancontact => "bancontact";
+        public const string Bancontact = "bancontact";
 
-        public static string Bitcoin => "bitcoin";
+        public const string Bitcoin = "bitcoin";
 
-        public static string Card => "card";
+        public const string Card = "card";
 
-        public static string Eps => "eps";
+        public const string Eps = "eps";
 
-        public static string Giropay => "giropay";
+        public const string Giropay = "giropay";
 
-        public static string Ideal => "ideal";
+        public const string Ideal = "ideal";
 
-        public static string P24 => "p24";
+        public const string P24 = "p24";
 
-        public static string SepaCreditTransfer => "sepa_credit_transfer";
+        public const string SepaCreditTransfer = "sepa_credit_transfer";
 
-        public static string SepaDebit => "sepa_debit";
+        public const string SepaDebit = "sepa_debit";
 
-        public static string Sofort => "sofort";
+        public const string Sofort = "sofort";
 
-        public static string ThreeDSecure => "three_d_secure";
+        public const string ThreeDSecure = "three_d_secure";
     }
 }

src/Stripe.net/Constants/SourceUsage.cs

@@ -2,8 +2,8 @@ namespace Stripe
 {
     public static class SourceUsage
     {
-        public static string Reusable => "reusable";
+        public const string Reusable = "reusable";
 
-        public static string SingleUse => "single_use";
+        public const string SingleUse = "single_use";
     }
 }

src/Stripe.net/Constants/SubscriptionStatuses.cs

@@ -2,18 +2,18 @@ namespace Stripe
 {
     public static class SubscriptionStatuses
     {
-        public static string Trialing => "trialing";
+        public const string Trialing = "trialing";
 
-        public static string Active => "active";
+        public const string Active = "active";
 
-        public static string PastDue => "past_due";
+        public const string PastDue = "past_due";
 
-        public static string Canceled => "canceled";
+        public const string Canceled = "canceled";
 
-        public static string Unpaid => "unpaid";
+        public const string Unpaid = "unpaid";
 
-        public static string Incomplete => "incomplete";
+        public const string Incomplete = "incomplete";
 
-        public static string IncompleteExpired => "incomplete_expired";
+        public const string IncompleteExpired = "incomplete_expired";
     }
 }

src/Stripe.net/Constants/TransferFailureCodes.cs

@@ -2,24 +2,24 @@ namespace Stripe
 {
     public static class TransferFailureCodes
     {
-        public static string InsufficientFunds => "insufficient_funds";
+        public const string InsufficientFunds = "insufficient_funds";
 
-        public static string AccountClosed => "account_closed";
+        public const string AccountClosed = "account_closed";
 
-        public static string NoAccount => "no_account";
+        public const string NoAccount = "no_account";
 
-        public static string InvalidAccountNumber => "invalid_account_number";
+        public const string InvalidAccountNumber = "invalid_account_number";
 
-        public static string DebitNotAuthorized => "debit_not_authorized";
+        public const string DebitNotAuthorized = "debit_not_authorized";
 
-        public static string BankOwnershipChanged => "bank_ownership_changed";
+        public const string BankOwnershipChanged = "bank_ownership_changed";
 
-        public static string AccountFrozen => "account_frozen";
+        public const string AccountFrozen = "account_frozen";
 
-        public static string CouldNotProcess => "could_not_process";
+        public const string CouldNotProcess = "could_not_process";
 
-        public static string BankAccountRestricted => "bank_account_restricted";
+        public const string BankAccountRestricted = "bank_account_restricted";
 
-        public static string InvalidCurrency => "invalid_currency";
+        public const string InvalidCurrency = "invalid_currency";
     }
 }

src/Stripe.net/Constants/TransferMethod.cs

@@ -5,11 +5,11 @@ public static class TransferMethod
         /// <summary>
         /// Standard is the default method.
         /// </summary>
-        public static string Standard => "standard";
+        public const string Standard = "standard";
 
         /// <summary>
         /// Only supported for transfers to debit cards.
         /// </summary>
-        public static string Instant => "instant";
+        public const string Instant = "instant";
     }
 }