code: def labelSelected(self, item):
      self.edit.setText(item.text())
  
imports: import re
  from PyQt5 import QtCore
  from PyQt5 import QtGui
  from PyQt5 import QtWidgets
  from PyQt5.Qt import QT_VERSION_STR
  from libs.utils import newIcon, labelValidator
label_desc: Use image node_id 3 for calling the KeyDialog obj's underlying member method code with example usage: obj.labelSelected(item) without return types