code: def test_forward(self, model, tokens, tokenizer):
      output = model(**tokens).logits
      argmax = output.argmax(-1)
      argmax = tokenizer.batch_decode(argmax)[0]
      print("mlm:", argmax)
      print("forward:", output)
      print()
      assert isinstance(argmax, str)
  
file_path: parallelformers/tests/masked_lm.py
imports: import os
  import unittest
  from argparse import ArgumentParser
  import torch
  from transformers import AutoModelForMaskedLM, AutoTokenizer
  from parallelformers import parallelize
label_desc: Use image node_id 1 for calling the TestModelForMaskedLM obj's underlying member method code with example usage: obj.test_forward(model, tokens, tokenizer) without return types