Confirm this is a feature request for the .NET library and not the underlying OpenAI API
Describe the feature or improvement you are requesting
add method overloads:
CreateBatchOperation.Rehydrate(BatchClient client, int batchId, CancellationToken cancellationToken = default)
CreateBatchOperation.RehydrateAsync(BatchClient client, int batchId, CancellationToken cancellationToken = default)
Additional context
No response