code: def get_num_gpus():
      """
      Get the current option for how many GPUs to use when applicable.
  
      See also
      --------
      set_num_gpus
      """
      return get_runtime_config()["TURI_NUM_GPUS"]
  
file_path: turicreate/src/python/turicreate/config/__init__.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import sys
  import tempfile
  import os
  import time
  import re
label_desc: Use image node_id 4 for calling a global function with example usage: get_num_gpus() and returns: get_runtime_config