code: def create_test_data(self):
      data_file = tempfile.NamedTemporaryFile(mode="w+", delete=False)
      data_file.writelines(
          """zinc_id,smiles
              ZINC000510438538,FC(F)Oc1ccc([C@H](NCc2cnc3ccccn23)C(F)(F)F)cc1
              """
      )
      data_file_path = str(data_file.name)
      data_file.close()
  
      return data_file_path
  
file_path: NeMo/tests/collections/nlp/test_regex_tokenizer.py
imports: import tempfile
  import pytest
  from nemo.collections.common.tokenizers.regex_tokenizer import RegExTokenizer
label_desc: Use image node_id 1 for calling the TestRegexTokenizer obj's underlying member method code with example usage: obj.create_test_data() and returns: data_file_path