How to highlight selection in QTreeWidget programmatically?

When I choose a selection in the QTreeWidget programmatically using item_selected('Item2') the selection gets passed to the handler as expected. I would also like that item to have a selection highlight, but I can't seem to figure that out. Any ideas?

from PyQt5.Qt import Qtfrom PyQt5.QtWidgets import QApplication, QTreeWidget, QTreeWidgetItemimport sysdef item_selected(selection):    try:        print(selection.text(0))    except AttributeError:        print(selection)app = QApplication(sys.argv)TreeList = ({'Header1': (('Item1', 'Item2', )),'Header2': (('Item11', 'Item21', )),})tree = QTreeWidget()for key, value in TreeList.items():    parent = QTreeWidgetItem(tree, [key])    for val in value:        child = QTreeWidgetItem([val])        child.setFlags(child.flags() | Qt.ItemIsUserCheckable)        child.setCheckState(0, Qt.Unchecked)        parent.addChild(child)tree.itemClicked.connect(item_selected)tree.show()# SELECT AND HIGHLIGHT THIS ONEitem_selected('Item2')sys.exit(app.exec_())

Sorry if the above code is a mess.