From af2257a8e26fc99ff615ebefbbb9c4d15637bc93 Mon Sep 17 00:00:00 2001
From: Jordan Sexton <jordan@jordansexton.com>
Date: Tue, 13 Sep 2022 15:54:10 -0500
Subject: [PATCH] add type guard for versioned txs

---
 packages/core/base/src/types.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/packages/core/base/src/types.ts b/packages/core/base/src/types.ts
index 65247a098..24aa5b327 100644
--- a/packages/core/base/src/types.ts
+++ b/packages/core/base/src/types.ts
@@ -12,3 +12,9 @@ export enum WalletAdapterNetwork {
 
 export type TransactionOrVersionedTransaction<SupportedTransactionVersions extends Set<TransactionVersion> | null> =
     SupportedTransactionVersions extends null ? Transaction : Transaction | VersionedTransaction;
+
+export function isVersionedTransaction(
+    transaction: Transaction | VersionedTransaction
+): transaction is VersionedTransaction {
+    return 'message' in transaction;
+}