code: func (c *Registry) GetDiagnoseHTTPAddress() string {
  	if c.v.IsSet(varDiagnoseHTTPAddress) {
  		return c.v.GetString(varDiagnoseHTTPAddress)
  	} else if c.IsPostgresDeveloperModeEnabled() {
  		return "127.0.0.1:0"
  	}
  	return ""
  }
docs: // GetDiagnoseHTTPAddress returns the address of where to start the gops handler.
  // By default GetDiagnoseHTTPAddress is 127.0.0.1:0 in devMode, but turned off in prod mode
  // unless explicitly configured