code: def create_raymarch_function(self) -> None:
      self.raymarch_function = SRNRaymarchFunction(
          latent_dim=self.latent_dim,
          **self.raymarch_function_args,
      )
  
imports: from typing import Any, cast, Optional, Tuple
  import torch
  from omegaconf import DictConfig
  from pytorch3d.common.linear_with_repeat import LinearWithRepeat
  from pytorch3d.implicitron.models.renderer.base import ImplicitronRayBundle
  from pytorch3d.implicitron.third_party import hyperlayers, pytorch_prototyping
  from pytorch3d.implicitron.tools.config import Configurable, registry, run_auto_creation
  from pytorch3d.renderer import ray_bundle_to_ray_points
  from pytorch3d.renderer.cameras import CamerasBase
  from pytorch3d.renderer.implicit import HarmonicEmbedding
  from .base import ImplicitFunctionBase
  from .utils import create_embeddings_for_implicit_function
label_desc: Use image node_id 2 for calling the SRNImplicitFunction obj's underlying member method code with example usage: obj.create_raymarch_function() without return types