made mypy happy
@@ -284,6 +284,7 @@ def test_valid_sign_2() -> None:
sequence=0xFFFFFFFF,
txinwitness=[],
)
+ assert psbt.inputs[0].witness_utxo is not None
transaction = Tx(0, 2, vin=[transaction_input], vout=[psbt.inputs[0].witness_utxo])
psbt.tx.vin[0].prevout.txid = transaction.txid
psbt.inputs[0].non_witness_utxo = transaction
