Feeling confused to use GRU Fusion module

[Ailon-Island]

How could I use the GRU Fusion module to feed-forwardly fuse some multiview pictures? The checkpoint G.ckpt seems to be somehow broken and the representations.grufusion is not even included in train.py. Also, the representation backends looks incoherent (tcnn and torchsparse). Are you migrating the original code into a ngp_pl style one, I guess?