code: def test_gaussian_integral():
      """Test the gaussian integral utility."""
      assert dc.utils.pytorch_utils.gaussian_integral(5, 1.0) == 1.0
  
file_path: deepchem/deepchem/utils/test/test_pytorch_utils.py
imports: import deepchem
  import numpy
  import pytest
label_desc: Use image node_id 5 for calling a global function with example usage: test_gaussian_integral() without return types