T5 for multiple choice

I wanted to use T5 for multiple choice task. Since there’s no class as T5ForMultipleChoice defined, I was wondering if there’s any specific reason for why this hasn’t been done.

Can anyone suggest how to use T5ForConditionalGeneration for multiple choice task ? I can define my own MLP in the same way as AutoModelForMultipleChoice but was wondering if there’s any specific formatting of inputs required to deal with Multiple Choice task within the library.