docstr: Check the training script doesn't crash.
docstr_tok: ["Check","the","training","script","does","n't","crash","."]
code: def test_train_model_repeat_ul(self):
      """
      Check the training script doesn't crash.
      """
      opt = {
          "model": "projects.dialogue_unlikelihood.agents:RepetitionUnlikelihoodAgent",
          "load_from_checkpoint": False,
          "task": "convai2",
          "max_train_steps": 10,
          "validation_max_exs": 64,
          "batchsize": 16,
          "truncate": 32,
          "short_final_eval": True,
      }
      testing_utils.train_model(opt)
  
file_path: ParlAI/tests/nightly/gpu/test_unlikelihood.py
imports: import os
  import unittest
  import parlai.utils.testing
label_desc: Use image node_id 1 for calling the TestUnlikelihood obj's underlying member method code with example usage: obj.test_train_model_repeat_ul() without return types