BlobOpenReadOptions
Optional parameters for  OpenReadAsync
                namespace Azure.Storage.Blobs.Models
{
    public class BlobOpenReadOptions
    {
        public long Position { get; set; }
        public int? BufferSize { get; set; }
        public BlobRequestConditions Conditions { get; set; }
        public DownloadTransferValidationOptions TransferValidation { get; set; }
        internal bool AllowModifications { get; }
        public BlobOpenReadOptions(bool allowModifications)
        {
            AllowModifications = allowModifications;
        }
    }
}