code: def write_action_env(var_name, var):
      write('build --action_env {}="{}"'.format(var_name, var))
  
imports: import os
  import pathlib
  import platform
  import logging
  import tensorflow
  from packaging.version import Version
label_desc: Use image node_id 2 for calling a global function with example usage: write_action_env(var_name, var) without return types