code: func virtualMachineIPsForTag(ctx context.Context, client *vSphereClient, id string) ([]string, error) {
  	vms, err := virtualMachinesForTag(ctx, client, id)
  	if err != nil {
  		return nil, err
  	}
  
  	return ipAddrsForVirtualMachines(ctx, client, vms)
  }
docs: // virtualMachineIPsForTag is a higher-level wrapper that calls out to
  // functions to fetch all of the virtual machines matching a certain tag ID,
  // and then gets all of the IP addresses for those virtual machines.