style fixes

Author: vgvoleg

ydb/_topic_reader/topic_reader_asyncio.py

@@ -369,16 +369,16 @@ def _get_first_batch(self) -> typing.Tuple[int, datatypes.PublicBatch]:
         return first_id, batch
 
     def _cut_batch_by_max_messages(
-            batch: datatypes.PublicBatch,
-            max_messages: int,
+        batch: datatypes.PublicBatch,
+        max_messages: int,
     ) -> typing.Tuple[datatypes.PublicBatch, datatypes.PublicBatch]:
         initial_length = len(batch.messages)
         one_message_size = batch._bytes_size // initial_length
 
         new_batch = datatypes.PublicBatch(
             messages=batch.messages[:max_messages],
             _partition_session=batch._partition_session,
-            _bytes_size=one_message_size*max_messages,
+            _bytes_size=one_message_size * max_messages,
             _codec=batch._codec,
         )