code: def init_decoder(self, config):
      self.decoder = instantiate_from_config(config)
      if hasattr(self.decoder, "encoder"):
          del self.decoder.encoder
  
file_path: generative-models/sgm/modules/autoencoding/losses/lpips.py
imports: import torch
  import torch.nn
  from ....util import default, instantiate_from_config
  from ..lpips.loss.lpips import LPIPS
label_desc: Use image node_id 2 for calling the LatentLPIPS obj's underlying member method code with example usage: obj.init_decoder(config) without return types