code: def check_version():
      sc = getOrCreateSparkContext()
      conf = sc._conf
      if (
          conf.get("spark.analytics.zoo.versionCheck", "False").lower()
          == "true"
      ):
          report_warn = (
              conf.get(
                  "spark.analytics.zoo.versionCheck.warning", "False"
              ).lower()
              == "true"
          )
          _check_spark_version(sc, report_warn)
  
imports: from bigdl.dllib.utils.common import *
  from bigdl.dllib.utils.file_utils import callZooFunc
  from bigdl.dllib.utils.utils import set_python_home
  from bigdl.dllib.utils.log4Error import *
  import warnings
  import multiprocessing
  import os
  import threading
  import sys
label_desc: Use image node_id 15 for calling a global function with example usage: check_version() without return types