vsphere/host_network_system_helper.go
func hostNetworkSystemFromHostSystemID(client *govmomi.Client, hsID string) (*object.HostNetworkSystem, error) {
	hs, err := hostsystem.FromID(client, hsID)
	if err != nil {
		return nil, err
	}
	return hostNetworkSystemFromHostSystem(hs)
}
func hostNetworkSystemFromHostSystemID(client *govmomi.Client, hsID string) (*object.HostNetworkSystem, error) {
	hs, err := hostsystem.FromID(client, hsID)
	if err != nil {
		return nil, err
	}
	return hostNetworkSystemFromHostSystem(hs)
}
// hostNetworkSystemFromHostSystemID locates a HostNetworkSystem from a
// specified HostSystem managed object ID.