code: def add_prepared_data_args(params):
      params.add_argument(
          C.TRAINING_ARG_PREPARED_DATA,
          "-d",
          type=regular_folder(),
          help="Prepared training data directory created through python -m sockeye.prepare_data.",
      )
  
imports: import argparse
  import os
  import sys
  import types
  from typing import Any, Callable, Dict, List, Tuple, Optional
  import yaml
  from sockeye.utils import smart_open
  from .None import constants
label_desc: Use image node_id 20 for calling a global function with example usage: add_prepared_data_args(params) without return types