code: def test_render_meshes(self):
      self._render_meshes(MeshRasterizer, HardGouraudShader)
  
imports: import unittest
  import torch
  import torch.nn
  from pytorch3d.renderer import AlphaCompositor, BlendParams, HardGouraudShader, Materials, MeshRasterizer, MeshRenderer, PointLights, PointsRasterizationSettings, PointsRasterizer, PointsRenderer, RasterizationSettings, SoftPhongShader, SplatterPhongShader, TexturesVertex
  from pytorch3d.renderer.cameras import FoVPerspectiveCameras, look_at_view_transform
  from pytorch3d.renderer.opengl import MeshRasterizerOpenGL
  from pytorch3d.structures import Meshes, Pointclouds
  from pytorch3d.utils.ico_sphere import ico_sphere
  from .common_testing import TestCaseMixin
label_desc: Use image node_id 6 for calling the TestRenderMeshesMultiGPU obj's underlying member method code with example usage: obj.test_render_meshes() without return types