code: def main(cfg) -> None:
      logging.info(
          "\n\n************** Experiment configuration ***********"
      )
      logging.info(OmegaConf.to_yaml(cfg))
      table = pd.read_csv(cfg.table_csv_file)
      example_arrays = {}
      for col in cfg.table_structure:
          col_name = col["name"]
          example_arrays[col_name] = table[col_name].dropna().unique()
      cc = ColumnCodes.get_column_codes(
          cfg.table_structure, example_arrays
      )
      with open(cfg.tokenizer_file, "wb") as handle:
          pickle.dump(cc, handle)
  
imports: import pickle
  import pandas
  from omegaconf import OmegaConf
  from nemo.collections.common.tokenizers.column_coder import ColumnCodes
  from nemo.core.config import hydra_runner
  from nemo.utils import logging
label_desc: Use image node_id 1 for calling a global function with example usage: main(cfg) without return types