code: def test_matches_pytorch_fp64(self):
      self.test_matches_pytorch(dtypes=[torch.float64], rtol=1e-15)
  
file_path: apex/apex/contrib/test/clip_grad/test_clip_grad.py
imports: import random
  import unittest
  import torch
label_desc: Use image node_id 5 for calling the ClipGradNormTest obj's underlying member method code with example usage: obj.test_matches_pytorch_fp64() without return types