code: def pytest_addoption(parser: Any) -> None:
      parser.addoption("--backend")
      parser.addoption("--skipslow", action="store_true")
  
imports: from typing import Optional, Callable, Tuple, Dict, Any, List, NamedTuple
  import functools
  import pytest
  import eagerpy
  import foolbox
  import foolbox
label_desc: Use image node_id 1 for calling a global function with example usage: pytest_addoption(parser) without return types