Make "train" dependencies optional #776
Description
Some of our Python dependencies are only used for pretraining some models, e.g. typos. We need to add a "train" option to setup.py so that they are not installed by default.
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Some of our Python dependencies are only used for pretraining some models, e.g. typos. We need to add a "train" option to setup.py so that they are not installed by default.