code: def test_remove_punc():
      sentence = "this, is. a! sentence: with; punctuations?"
      expected_punc_removed_sent = (
          "this is a sentence with punctuations"
      )
  
      punc_removed_sent = QAMetrics.remove_punc(sentence)
  
      assert punc_removed_sent == expected_punc_removed_sent
  
file_path: NeMo/tests/collections/nlp/test_qna.py
imports: import collections
  import pytest
  import torch
  from nemo.collections.nlp.data.question_answering.dataset.qa_dataset import QADataset
  from nemo.collections.nlp.data.question_answering.dataset.qa_gpt_dataset import GPTQADataset
  from nemo.collections.nlp.metrics.qa_metrics import QAMetrics
label_desc: Use image node_id 3 for calling a global function with example usage: test_remove_punc() without return types