code: func flushOAuthTokensLogCron(c *router.Context) {
  	// FlushOAuthTokensLog logs errors inside. We also do not retry on errors.
  	// It's fine to wait and flush on the next iteration.
  	serviceaccounts.FlushOAuthTokensLog(c.Context)
  	c.Writer.WriteHeader(http.StatusOK)
  }
docs: // flushOAuthTokensLogCron is handler for /internal/cron/bqlog/oauth-tokens-flush.