code: def pytest_addoption(parser):
      parser.addoption(
          "--runslow",
          action="store_true",
          default=False,
          help="run slow tests",
      )
      parser.addoption(
          "--run_single_gpu",
          action="store_true",
          default=False,
          help="run single-gpu tests",
      )
  
imports: import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: pytest_addoption(parser) without return types