code: def pytest_report_header() -> str:
      return f"torch: {torch.__version__}"
  
file_path: fairscale/tests/nn/pipe/conftest.py
imports: import functools
  import os
  from typing import Any, Callable
  import pytest
  import torch
  from fairscale.nn.model_parallel import destroy_model_parallel
label_desc: Use image node_id 4 for calling a global function with example usage: pytest_report_header() and returns: str, torch