func (h Wincred) Get(serverURL string) (string, string, error) {
	target, err := getTarget(serverURL)
	if err != nil {
		return "", "", err
	} else if target == "" {
		return "", "", credentials.NewErrCredentialsNotFound()
	}
	g, _ := winc.GetGenericCredential(target)
	if g == nil {
		return "", "", credentials.NewErrCredentialsNotFound()
	}
	for _, attr := range g.Attributes {
		if strings.Compare(attr.Keyword, "label") == 0 &&
			bytes.Compare(attr.Value, []byte(credentials.CredsLabel)) == 0 {
			return g.UserName, string(g.CredentialBlob), nil
		}
	}
	return "", "", credentials.NewErrCredentialsNotFound()
}
Get retrieves credentials from the windows credentials manager.
package wincred
import (
	"bytes"
	"net/url"
	"strings"
	winc "github.com/danieljoos/wincred"
	"github.com/docker/docker-credential-helpers/credentials"
	"github.com/docker/docker-credential-helpers/registryurl"
)
type Wincred struct{}
func (h Wincred) Add(creds *credentials.Credentials) error {
	credsLabels := []byte(credentials.CredsLabel)
	g := winc.NewGenericCredential(creds.ServerURL)
	g.UserName = creds.Username
	g.CredentialBlob = []byte(creds.Secret)
	g.Persist = winc.PersistLocalMachine
	g.Attributes = []winc.CredentialAttribute{{Keyword: "label", Value: credsLabels}}
	return g.Write()
}
func (h Wincred) Delete(serverURL string) error {
	g, err := winc.GetGenericCredential(serverURL)
	if g == nil {
		return nil
	}
	if err != nil {
		return err
	}
	return g.Delete()
}