code: 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()
  }
docs: // Add adds new credentials to the windows credentials manager.