signTransaction returns TransactionBuilder

packages/stack/src/wallet/base-wallet.ts

@@ -1,3 +1,4 @@
+import { type TransactionBuilder } from './transaction-builder.js';
 import {
   WalletUTXOs,
   type InputTemplateBCH,
@@ -207,7 +208,7 @@ export abstract class BaseWallet<
    */
   abstract signTransaction(
     template: Partial<TransactionTemplate>,
-  ): Promise<Uint8Array>;
+  ): Promise<TransactionBuilder>;
 
   /**
    * Select UTXOs from this wallet to meet the amounts required and broadcast it to the Blockchain.