code: def test_add_gaussian_to_pipeline():
      tmp_dir = tempfile.mkdtemp()
  
      p = Augmentor.Pipeline(tmp_dir)
      p.gaussian_distortion(1, 8, 8, 8, "true", "true")
  
      assert p is not None
  
file_path: Augmentor/tests/test_gaussian.py
imports: import pytest
  import os
  import sys
  import tempfile
  import Augmentor
  from Augmentor import Operations
label_desc: Use image node_id 2 for calling a global function with example usage: test_add_gaussian_to_pipeline() without return types