code: func (k *Store) RemoveAll() {
  	k.mu.Lock()
  	defer k.mu.Unlock()
  
  	// Log all changes
  	for key, _ := range k.db {
  		k.logChange(removeOperation, key, nil)
  	}
  	k.db = make(map[string]interface{})
  }
docs: // RemoveAll removes all entries from the store
  // These changes are not persisted until you call Save()