code: def mp_pool():
      # Usage of `fork` as a start method for multiprocessing could lead to deadlocks on macOS.
      # Because `fork` was the default start method for macOS until Python 3.8
      # we had to manually set the start method to `spawn` to avoid those issues.
      if sys.platform == "darwin":
          method = "spawn"
      else:
          method = None
      return multiprocessing.get_context(method).Pool(8)
  
file_path: albumentations/tests/conftest.py
imports: import multiprocessing
  import sys
  import warnings
  import numpy
  import pytest
label_desc: Use image node_id 10 for calling a global function with example usage: mp_pool() and returns: multiprocessing