code: func InMemoryInitZones(zones []string) InMemoryOption {
  	return func(p *InMemoryProvider) {
  		for _, z := range zones {
  			if err := p.CreateZone(z); err != nil {
  				log.Warnf("Unable to initialize zones for inmemory provider")
  			}
  		}
  	}
  }
docs: // InMemoryInitZones pre-seeds the InMemoryProvider with given zones