code: def dummy_data(test_data_dir):
      return os.path.join(test_data_dir, "nlp", "dummy_data")
  
imports: import os
  import tempfile
  import onnx
  import pytest
  import pytorch_lightning
  import torch
  import wget
  from omegaconf import DictConfig, OmegaConf
  from nemo.collections import nlp
  from nemo.collections.nlp.models import IntentSlotClassificationModel
  from nemo.collections.nlp.modules.common import SequenceClassifier, SequenceRegression, SequenceTokenClassifier, TokenClassifier
label_desc: Use image node_id 2 for calling a global function with example usage: dummy_data(test_data_dir) and returns: os