code: func (k *Apk) Label(resConfig *androidbinary.ResTableConfig) (s string, err error) {
  	s = k.getResource(k.manifest.App.Label, resConfig)
  	if androidbinary.IsResID(s) {
  		err = errors.New("unable to convert label-id to string")
  	}
  	return
  }
docs: // Label returns the label of the APK.