code: def setUp(self):
      self.x = torch.ones((2), device="cuda", dtype=torch.float32)
      common_init(self)
  
file_path: apex/tests/L0/run_amp/test_larc.py
imports: import unittest
  import torch
  from torch import nn
  from torch.nn import Parameter
  from apex import amp
  from apex.parallel.LARC import LARC
  from utils import common_init
label_desc: Use image node_id 1 for calling the TestLARC obj's underlying member method code with example usage: obj.setUp() without return types