code: func (cfgSrcHandler *Handler) Cleanup() error {
  	cfgSrcHandler.connsLock.Lock()
  	defer cfgSrcHandler.connsLock.Unlock()
  
  	if cfgSrcHandler.dynamicConfigHandler != nil {
  		cfgSrcHandler.dynamicConfigHandler.Cleanup()
  	}
  
  	cfgSrcHandler.dynamicConfigHandler = nil
  	cfgSrcHandler.Configurations = nil
  
  	return nil
  }
docs: //Cleanup cleans the particular configuration up