From 3379e462498cee56b909f2e1a9a8cdfdabdae4e5 Mon Sep 17 00:00:00 2001
From: SomberNight <somber.night@protonmail.com>
Date: Thu, 9 Oct 2025 14:57:41 +0000
Subject: [PATCH] follow-up prev: add type-hints, etc

---
 electrum/transaction.py | 12 ++++++------
 electrum/txbatcher.py   |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/electrum/transaction.py b/electrum/transaction.py
index eed3820e7..cca06ff18 100644
--- a/electrum/transaction.py
+++ b/electrum/transaction.py
@@ -2420,19 +2420,19 @@ class PartialTransaction(Transaction):
         self.add_outputs([funding_output])
         delattr(self, '_script_to_output_idx')
 
-    def get_change_outputs(self):
-        return  [o for o in self._outputs if o.is_change]
+    def get_change_outputs(self) -> Sequence[PartialTxOutput]:
+        return [o for o in self._outputs if o.is_change]
 
-    def has_change(self):
+    def has_change(self) -> bool:
         return len(self.get_change_outputs()) > 0
 
     def get_dummy_output(self, dummy_addr: str) -> Optional['PartialTxOutput']:
         idxs = self.get_output_idxs_from_address(dummy_addr)
         if not idxs:
-            return
+            return None
         assert len(idxs) == 1
-        for i in idxs:
-            return self.outputs()[i]
+        idx = list(idxs)[0]
+        return self.outputs()[idx]
 
     def set_rbf(self, rbf: bool) -> None:
         nSequence = 0xffffffff - (2 if rbf else 1)
diff --git a/electrum/txbatcher.py b/electrum/txbatcher.py
index 3dcf159fd..6451bfb33 100644
--- a/electrum/txbatcher.py
+++ b/electrum/txbatcher.py
@@ -559,7 +559,7 @@ class TxBatch(Logger):
         self._prevout = None
 
     @locked
-    def _new_base_tx(self, tx: Transaction) -> None:
+    def _new_base_tx(self, tx: PartialTransaction) -> None:
         self._prevout = tx.inputs()[0].prevout.to_str()
         self.storage['prevout'] = self._prevout
         if tx.has_change():