Analog of BinaryArray.GetBytes() in Microsoft.Data.Analysis.DataFrame

Hello

I use the RecordBatch format of UDFs.
I use Apache.Arrow.BinaryArray to store serialized objects.
When I call BinaryArray(i) I get i-th object in the array. (i-th binary set)
I would like to simplify my UDFs by using Microsoft.Data.Analysis.DataFrame however I don't see any corresponding API.
ByteColumn allows only take binaries one by one.

Is there any analogue of GetBytes() ?

Thank you