code: def copy_data_files(src_dir, dest_dir):
      """Copy files with datafile extension from src_dir to dest_dir."""
      data_file_extension = [".dat", ".csv", ".sav"]
  
      for file in src_dir.glob("*"):
          if file.suffix in data_file_extension:
              copy2(file, dest_dir)
  
imports: import os
  from pathlib import Path
  import shlex
  from shutil import copy2
  import subprocess
label_desc: Use image node_id 1 for calling a global function with example usage: copy_data_files(src_dir, dest_dir) without return types