code: def _request_compute_metadata(path):
      req = urllib.request.Request(
          "%s/computeMetadata/v1/%s" % (_gce_metadata_endpoint(), path),
          headers={"Metadata-Flavor": "Google"},
      )
      resp = urllib.request.urlopen(req)
      return _as_text(resp.read())
  
imports: from concurrent import futures
  import datetime
  import json
  import logging
  import os
  import time
  import urllib
  from absl import flags
label_desc: Use image node_id 4 for calling a global function with example usage: _request_compute_metadata(path) and returns: _as_text