However, according to the VTAB+MD paper, the training datasets should not include 'mscoco' or 'traffic_sign'. I suppose that this is unlikely to be a problem as those two datasets do not have training splits, but it is a bit confusing to have them listed.
On the Meta-Dataset in TFDS documentation page (https://github.com/google-research/meta-dataset/blob/main/meta_dataset/data/tfds/README.md), in the "Train on Meta-Dataset episodes" section, there is a code example that says:
However, according to the VTAB+MD paper, the training datasets should not include 'mscoco' or 'traffic_sign'. I suppose that this is unlikely to be a problem as those two datasets do not have training splits, but it is a bit confusing to have them listed.