func (c *ec2MetadataClientImpl) SubnetID(mac string) (string, error) {
	return c.client.GetMetadata(fmt.Sprintf(SubnetIDResourceFormat, mac))
}
func (c *ec2MetadataClientImpl) SubnetID(mac string) (string, error) {
	return c.client.GetMetadata(fmt.Sprintf(SubnetIDResourceFormat, mac))
}
func ( c * ec2MetadataClientImpl ) SubnetID ( mac string ) ( string , error ) { return c . client . GetMetadata ( fmt . Sprintf ( SubnetIDResourceFormat , mac ) ) }
// SubnetID returns the subnet id for the network interface,
// given its mac address
SubnetID returns the subnet id for the network interface given its mac address