in custom-resource-runtime/ec2-deployer/index.py [0:0]
def on_event(event, context):
  print(f'Event: {event}')
  request_type = event['RequestType']
  if request_type == 'Create' or request_type == 'Update': return handle_event(event)
  if request_type == 'Delete': return
  raise Exception(f"Invalid request type: {request_type}")