In the Usage, there is code like
seq = torch.randint(0, 21, (1, 128)).cuda()
msa = torch.randint(0, 21, (1, 5, 64)).cuda().
If I have a a3m msa file, how to encode the file to this tensor? And why the seq length is 128 but the msa is 5 times 64 (5 timeshalf the length of seq?).
Could you give an example of how to use that or how to generate that msa tensor?

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