From 4943be2a455125df8d9631f12cc1aea605e1c6f1 Mon Sep 17 00:00:00 2001
From: Tom Augspurger <tom.w.augspurger@gmail.com>
Date: Sat, 24 Aug 2024 15:44:00 -0500
Subject: [PATCH] fixup

---
 src/zarr/codecs/crc32c_.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/zarr/codecs/crc32c_.py b/src/zarr/codecs/crc32c_.py
index f7cc02edad..f9e9ce4d1a 100644
--- a/src/zarr/codecs/crc32c_.py
+++ b/src/zarr/codecs/crc32c_.py
@@ -53,7 +53,7 @@ async def _encode_single(
     ) -> Buffer | None:
         data = chunk_bytes.as_numpy_array()
         # Calculate the checksum and "cast" it to a numpy array
-        checksum = np.array([crc32c(data)], dtype=np.uint32)  # type: ignore[arg-type]
+        checksum = np.array([crc32c(cast(typing_extensions.Buffer, data))], dtype=np.uint32)
         # Append the checksum (as bytes) to the data
         return chunk_spec.prototype.buffer.from_array_like(np.append(data, checksum.view("b")))