func NewConf(args *skel.CmdArgs) (*NetConf, error) {
	var conf NetConf
	if err := json.Unmarshal(args.StdinData, &conf); err != nil {
		return nil, errors.Wrap(err, "newconf types: failed to parse config")
	}
	if conf.ENIID == "" {
		return nil, errors.Errorf("newconf types: missing required parameter in config: '%s'", "eni")
	}
	if conf.MACAddress == "" {
		return nil, errors.Errorf("newconf types: missing required parameter in config: '%s'", "mac")
	}
	if len(conf.IPAddresses) == 0 {
		return nil, errors.Errorf("newconf types: missing required parameter in config: '%s'", "ip-addresses")
	}
	if _, err := net.ParseMAC(conf.MACAddress); err != nil {
		return nil, errors.Wrapf(err, "newconf types: malformatted mac address specified")
	}
	for _, addr := range conf.IPAddresses {
		if err := isValidIPAddress(addr); err != nil {
			return nil, err
		}
	}
	log.Debugf("Loaded config: %v", conf)
	return &conf, nil
}
NewConf creates a new NetConf object by parsing the arguments supplied
package types
import (
	"encoding/json"
	"net"
	log "github.com/cihub/seelog"
	"github.com/containernetworking/cni/pkg/skel"
	"github.com/containernetworking/cni/pkg/types"
	"github.com/pkg/errors"
)
type NetConf struct {
	types.NetConf
	ENIID              string   `json:"eni"`
	MACAddress         string   `json:"mac"`
	IPAddresses        []string `json:"ip-addresses"`
	GatewayIPAddresses []string `json:"gateway-ip-addresses"`
	BlockIMDS          bool     `json:"block-instance-metadata"`
	StayDown           bool     `json:"stay-down"`
	MTU                int      `json:"mtu"`
}