code: def save_file_to_csv(df: pd.DataFrame, path_to_save: str):
      return df.to_csv(path_to_save, sep=",")
  
imports: import math
  import os
  import platform
  import random
  import tempfile
  from pathlib import Path
  from typing import Optional, Union
  import numpy
  import pandas
  from golem.utilities.random import RandomStateHandler
  from sklearn.model_selection import train_test_split
label_desc: Use image node_id 6 for calling a global function with example usage: save_file_to_csv(df, path_to_save) and returns: df