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train.py

@@ -13,6 +13,7 @@ this repo. Contact the authors (see the model card) for access. Point
 --tfrecord-path at your local copy to run this script.
 
 Usage:
+    pip install -r requirements-train.txt
     python train.py --tfrecord-path /path/to/VQA_v4.tfrecord --output-dir ./runs/my_run
 """
 import argparse