fix return type

fdrose · fdrose · commit 2a1efd18de01 · 2025-10-23T12:28:00.000+02:00
diff --git a/src/together/utils/files.py b/src/together/utils/files.py
@@ -202,7 +202,7 @@ def _check_message_weight(message: Dict[str, str | bool], idx: int) -> None:
 
 def _check_message_role(
     message: Dict[str, str | bool], previous_role: str | None, idx: int
-) -> str | bool:
+) -> str:
     """Check that the message has correct roles.
 
     Args:
