code: def __get_default_start_method(method):
      """Determine default backend."""
      # Check for environmental variables
      win = sys.platform.startswith("win") or sys.platform.startswith(
          "cygwin"
      )
      if method == "":
          method = "fork" if not win else "spawn"
      return method
  
imports: from __future__ import print_function
  import os
  import sys
  import shutil
  import tempfile
  import warnings
  import sysconfig
  import subprocess
  from multiprocessing import current_process
  import numpy
label_desc: Use image node_id 13 for calling a global function with example usage: __get_default_start_method(method) and returns: method