code: def str2floats(s):
      """
      Look for single float or comma-separated floats.
      """
      return tuple(float(f) for f in s.split(","))
  
imports: import argparse
  import importlib
  import os
  import sys
  import datetime
  import parlai
  import parlai.utils.logging
  from parlai.core.build_data import modelzoo_path
  from parlai.core.loader import load_teacher_module, load_agent_module, load_world_module
  from parlai.tasks.tasks import ids_to_tasks
  from parlai.core.opt import Opt
  from parlai.utils.io import PathManager
  from typing import List, Optional
label_desc: Use image node_id 6 for calling a global function with example usage: str2floats(s) and returns: tuple