code: func (s *DriversStore) Set(driverName string, driver Driver) {
  	s.Lock()
  	defer s.Unlock()
  
  	if s.store == nil {
  		s.store = store{}
  	}
  
  	s.store[driverName] = driver
  }
docs: // Set lets you save a CSI Driver to the list and give it a specific name.
  // This method is protected by a mutex.