fix: Deprecate format specific row_count field in Read API (#424)

* feat: Deprecate format specific `row_count` field in Read API PiperOrigin-RevId: 438434001 Source-Link: googleapis/googleapis@727f08b Source-Link: googleapis/googleapis-gen@2d62ab0 Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiMmQ2MmFiMGQzZDY1MGI3YWJhNGVjNWU1YTk2ZGQ4Y2RiYWU4OWZiNyJ9 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: gcf-owl-bot[bot]

google/cloud/bigquery_storage_v1/types/arrow.py

@@ -51,7 +51,9 @@ class ArrowRecordBatch(proto.Message):
  serialized_record_batch (bytes):
  IPC-serialized Arrow RecordBatch.
  row_count (int):
- The count of rows in ``serialized_record_batch``.
+ [Deprecated] The count of rows in
+ ``serialized_record_batch``. Please use the
+ format-independent ReadRowsResponse.row_count instead.
  """
 
  serialized_record_batch = proto.Field(

google/cloud/bigquery_storage_v1/types/avro.py

@@ -47,7 +47,9 @@ class AvroRows(proto.Message):
  serialized_binary_rows (bytes):
  Binary serialized rows in a block.
  row_count (int):
- The count of rows in the returning block.
+ [Deprecated] The count of rows in the returning block.
+ Please use the format-independent ReadRowsResponse.row_count
+ instead.
  """
 
  serialized_binary_rows = proto.Field(