Since we are raising an error instead of returning a None, we can update the type hint.

Author: timsaucer

python/datafusion/record_batch.py

@@ -57,7 +57,7 @@ def __init__(self, record_batch_stream: df_internal.RecordBatchStream) -> None:
         """This constructor is typically not called by the end user."""
         self.rbs = record_batch_stream
 
-    def next(self) -> RecordBatch | None:
+    def next(self) -> RecordBatch:
         """See :py:func:`__next__` for the iterator function."""
         return next(self)