code: def setUp(self) -> None:
      np.random.seed(42)
      torch.manual_seed(42)
  
imports: import itertools
  import random
  import unittest
  import numpy
  import torch
  from pytorch3d.structures import utils
  from pytorch3d.structures.pointclouds import join_pointclouds_as_batch, join_pointclouds_as_scene, Pointclouds
  from .common_testing import TestCaseMixin
label_desc: Use image node_id 1 for calling the TestPointclouds obj's underlying member method code with example usage: obj.setUp() without return types