code: def forward(
      self,
      rays_o,
      rays_d,
      return_normal_image=False,
      return_normal_perturb=False,
      **kwargs,
  ):
      raise NotImplementedError
  
imports: import torch
  import torch.nn
label_desc: Use image node_id 3 for calling the BaseRenderer obj's underlying member method code with example usage: obj.forward(rays_o, rays_d, return_normal_image, return_normal_perturb) without return types