code: func (c Config) String() string {
  	if c.AuthCacheEnabled {
  		return fmt.Sprintf("TLS: %t, authCacheMaxSize: %d, authCachePurgeRatio: %f", c.TLS, c.AuthCacheMaxSize, c.AuthCachePurgeRetentionRatio)
  	}
  	return fmt.Sprintf("TLS: %t, auth cache disabled", c.TLS)
  }
docs: // String returns a string representation of this Config