📚 Documentation

I know that LightningDataModule supports return multiple dataloaders ,like list of dataloaders, or dict of dataloaders in LightningDataModule. But how to handle the test in LightningModule?
We always need print respective information of the computation upon each test_loader, and save the figs drawn for each dataloader, and we want to do some calculation on the whole dataset in each test_dataloader. But how to do these things in LightningModule's hooks about test? The developers only say that Lightning automatically handle the combination of multiple dataloaders, but how can Lightning compute for each Dataloader? and record information for each dataloaders??

cc @Borda