class_docstr: Test profile_train doesn't crash.
code: def test_cprofile(self):
      from parlai.scripts.profile_train import ProfileTrain
  
      with testing_utils.tempdir() as tmpdir:
          ProfileTrain.main(
              task="integration_tests:overfit",
              model="test_agents/unigram",
              model_file=os.path.join(tmpdir, "model"),
              skip_generation=True,
          )
  
imports: import os
  import unittest
  from parlai.core.message import Message
  from parlai.core.mutators import MessageMutator, register_mutator
  import parlai.utils.testing
label_desc: Use image node_id 1 for calling the TestProfileTrain obj's underlying member method code with example usage: obj.test_cprofile() without return types