code: def prepare_env():
      __prepare_spark_env()
      __prepare_analytics_zoo_env()
  
file_path: analytics-zoo/pyzoo/zoo/util/engine.py
imports: import sys
  import os
  import glob
  import warnings
  import logging
label_desc: Use image node_id 9 for calling a global function with example usage: prepare_env() without return types