code: def test_multiprocess_gpu(self):
      text = "The quick brown fox jumps over the lazy dog"
      n = 3
      if torch.cuda.is_available():
          aug = naw.ContextualWordEmbsAug(
              force_reload=True, device="cuda"
          )
  
          augmented_texts = aug.augment(text, n=n, num_thread=n)
          self.assertGreater(len(augmented_texts), 1)
          for augmented_text in augmented_texts:
              self.assertNotEqual(augmented_text, text)
  
      self.assertTrue(True)
  
file_path: nlpaug/test/augmenter/test_text_augmenter.py
imports: import unittest
  import os
  import torch
  import numpy
  from dotenv import load_dotenv
  import nlpaug.augmenter.char
  import nlpaug.augmenter.word
  import nlpaug.augmenter.sentence
label_desc: Use image node_id 4 for calling the TestTextAugmenter obj's underlying member method code with example usage: obj.test_multiprocess_gpu() without return types