code: def configure_optimizers(self):
      self._fine_tune_layers()
      params_to_update = filter(
          lambda p: p.requires_grad, self.model.parameters()
      )
      return self.optimizer_fn(params_to_update)
  
imports: import inspect
  import pytorch_lightning
  import torch
  import torch.nn
  import torch.nn.functional
  import torch.optim
  from pytorch_lightning.utilities import _module_available
  from urllib.error import URLError
  import time
label_desc: Use image node_id 6 for calling the LitDeepVisionModel obj's underlying member method code with example usage: obj.configure_optimizers() and returns: self