code: def get_ci_event_name():
      ci = get_current_ci()
      if ci == GITHUB:
          return os.environ["GITHUB_EVENT_NAME"]
      elif ci == TRAVIS:
          return os.environ["TRAVIS_EVENT_TYPE"]
      return None
  
imports: import argparse
  import errno
  import logging
  import os
  import signal
  import subprocess
  import sys
  import time
label_desc: Use image node_id 3 for calling a global function with example usage: get_ci_event_name() and returns: None, os, os