code: def __init__(self, scale: float):
      self.scale = scale
  
imports: import logging
  from abc import ABC, abstractmethod
  from typing import Dict, List, Optional, Tuple, Union
  import torch
  from einops import rearrange, repeat
  from ...util import append_dims, default
label_desc: Use image node_id 1 to create a new VanillaCFG object from inherited base classes: Guider with example: obj = VanillaCFG(scale)