code: def save_params(params, file_id):
      """Pickles the params object using the file_id as prefix."""
      file_name = _PARAMS_FILE_NAME_FORMAT.format(file_id)
      with open(file_name, "xb") as f:
          pickle.dump(params, f)
      return file_name
  
imports: import os
  import pickle
  from typing import Any, Dict, Optional
  import uuid
  from ..None import machine_config
  from ..None import run
  import tensorflow
  import tensorflow_datasets
  from official.legacy.image_classification.efficientnet import efficientnet_model
  from official.legacy.image_classification.resnet import resnet_model
label_desc: Use image node_id 15 for calling a global function with example usage: save_params(params, file_id) and returns: file_name