code: func LogOAuthToken(c context.Context, i *MintedOAuthTokenInfo) error {
  	return oauthTokensLog.Insert(c, &bq.Row{
  		Message: i.toBigQueryMessage(),
  	})
  }
docs: // LogOAuthToken records information about the OAuth token in the BigQuery.
  //
  // The token itself is not logged. Only first 16 bytes of its SHA256 hash
  // (aka 'fingerprint') is. It is used only to identify this particular token in
  // logs.
  //
  // On dev server, logs to the GAE log only, not to BigQuery (to avoid
  // accidentally pushing fake data to real BigQuery dataset).