code: def setUp(self, n):
      self.n = n
  
file_path: pfrl/tests/utils_tests/test_conjugate_gradient.py
imports: import pytest
  import torch
  import pfrl
  from pfrl.testing import torch_assert_allclose
label_desc: Use image node_id 1 for calling the TestConjugateGradient obj's underlying member method code with example usage: obj.setUp(n) without return types