Return the cached region for a bucket, resolving it lazily on cache miss.
If the region is not yet known, the Rust side calls GetBucketLocation synchronously and caches the result before returning.
The profile the bucket belongs to.
The bucket name.
Return the cached region for a bucket, resolving it lazily on cache miss.
If the region is not yet known, the Rust side calls GetBucketLocation synchronously and caches the result before returning.