code: def __init__(self, sampler):
      super().__init__(sampler)
  
      self.alphas = shared.sd_model.alphas_cumprod
      self.mask_before_denoising = True
  
imports: import torch
  import inspect
  import sys
  from modules import devices, sd_samplers_common, sd_samplers_timesteps_impl
  from modules.sd_samplers_cfg_denoiser import CFGDenoiser
  from modules.script_callbacks import ExtraNoiseParams, extra_noise_callback
  from modules.shared import opts
  import modules.shared
label_desc: Use image node_id 1 to create a new CFGDenoiserTimesteps object from inherited base classes: CFGDenoiser with example: obj = CFGDenoiserTimesteps(sampler)