code: def test_truncate():
      assert (
          truncate(
              "\nif len_a > len_b:\n    result = a\nelse:\n    result = b\n\n\n\n#"
          )
          == "\nif len_a > len_b:\n    result = a\nelse:\n    result = b"
      )
  
imports: import argparse
  import json
  import os
  from pathlib import Path
  import random
  from time import time
  import torch
  from transformers import GPT2TokenizerFast
  from jaxformer.hf.codegen.modeling_codegen import CodeGenForCausalLM
label_desc: Use image node_id 12 for calling a global function with example usage: test_truncate() without return types