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