http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/
Related search suggestions (for follow-up research): provide suggestions for search terms: functions.RelatedSearchTerms("suggestions":["suggestion":"Google Cloud metadata server access token example","score":0.9,"suggestion":"Compute Engine metadata service security best practices","score":0.85,"suggestion":"how to use service account tokens on GCE instance","score":0.8])
403 Forbidden