code: def setUp(self) -> None:
      torch.manual_seed(42)
      expand_args_fields(VoxelGridImplicitFunction)
  
file_path: pytorch3d/tests/implicitron/test_voxel_grid_implicit_function.py
imports: import unittest
  import torch
  from omegaconf import DictConfig, OmegaConf
  from pytorch3d.implicitron.models.implicit_function.voxel_grid_implicit_function import VoxelGridImplicitFunction
  from pytorch3d.implicitron.models.renderer.base import ImplicitronRayBundle
  from pytorch3d.implicitron.tools.config import expand_args_fields, get_default_args
  from pytorch3d.renderer import ray_bundle_to_ray_points
  from tests.common_testing import TestCaseMixin
label_desc: Use image node_id 1 for calling the TestVoxelGridImplicitFunction obj's underlying member method code with example usage: obj.setUp() without return types