'How to access nested QStandardItems?

I'm using PYQT5, I made a tree which contain a nested QStandardItem objects for example:

house = QStandardItem('house')
room = QStandardItem('room')
kitchen= QStandardItem('kitchen')

house.appendRow(room)
house.appendRow(kitchen)

I need to access the room and kitchen objects inside the house object and change their names in the tree instead of room or kitchen to anything else.
How can I do that?



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