code: def prompt_function():
      return ("cabbages", {})
  
file_path: trl/tests/test_ddpo_trainer.py
imports: import gc
  import unittest
  import torch
  from trl import is_diffusers_available, is_peft_available
  from .testing_utils import require_diffusers
label_desc: Use image node_id 2 for calling a global function with example usage: prompt_function() and returns: str,  dict