HypergraphConv in mini-batch, batch index is not continuous

[1zzt]

When using Hypergraph and mini-batch, the batch of the hypergraph edge_index are skipped. For example, I have three hypergraphs in a mini batch here, and its edge_index is:

tensor([[ 1,  0,  2,  3,  4, 11, 10, 12, 15,  4, 14, 17, 18, 19, 20, 21, 16,  8,
          9, 10, 11, 12,  6,  7,  8, 12, 13, 14,  5,  6, 14, 15,  4, 10, 16, 24,
         23, 25, 43, 42, 44, 49, 46, 45, 47, 48, 40, 31, 39, 41, 30, 32, 34, 35,
         36, 37, 38, 39, 32, 33, 34, 39, 40, 31, 44, 45, 46, 48, 49, 43, 26, 27,
         28, 29, 30, 25, 22, 23, 32, 42, 58, 57, 59, 60, 56, 86, 51, 85, 87, 53,
         51, 54, 64, 63, 65, 73, 72, 74, 76, 77, 78, 79, 80, 75, 67, 68, 69, 70,
         71, 66, 61, 62, 63, 72, 81, 60, 54, 55, 56, 82, 83, 84, 53, 54, 84, 85,
         86, 51, 50, 51, 51, 52, 65, 66, 74, 75],
        [ 0,  0,  0,  0,  0,  1,  1,  1,  2,  2,  2,  3,  3,  3,  3,  3,  3,  4,
          4,  4,  4,  4,  5,  5,  5,  5,  5,  5,  6,  6,  6,  6,  6,  7,  7, 22,
         22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 26, 26,
         26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 29, 29,
         29, 29, 29, 29, 30, 30, 31, 31, 50, 50, 50, 50, 50, 51, 51, 51, 51, 52,
         52, 52, 53, 53, 53, 54, 54, 54, 55, 55, 55, 55, 55, 55, 56, 56, 56, 56,
         56, 56, 57, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, 59, 59, 59, 59,
         59, 59, 60, 60, 61, 61, 62, 62, 63, 63]], device='cuda:1')

I want the index to be continuous, not from 7 to 22, or 31 to 50 , what should I do?

How can I define hyperedge_attr in HypergraphConv since there is x_j = hyperedge_attr[hyperedge_index[1]]