code: def get_environment_variables():
      from os import environ
  
      env_mask = ("secret", "key", "token", "password")
      env_vars = {
          k: v
          for k, v in environ.items()
          if next((m for m in env_mask if m in k.lower()), None) is None
      }
  
      return env_vars
  
imports: import logging
  import subprocess
label_desc: Use image node_id 2 for calling a global function with example usage: get_environment_variables() and returns: env_vars