How to use the harvesters._private.frontend.pyqt5.feature_tree.FeatureTreeModel function in harvesters

if self.filterAcceptsRow(child.row(), src_index):
                    return True
            return False
        else:
            matches = re.search(self._keyword, name, re.IGNORECASE)

        if matches:
            result = self.filterVisibility(visibility)
        else:
            result = False
        return result


if __name__ == '__main__':
    app = QApplication(sys.argv)
    model = FeatureTreeModel()
    view = QTreeView(model)
    view.show()
    sys.exit(app.exec_())

def __init__(self, node_map, parent=None):
        #
        super().__init__(parent=parent)

        #
        self.setWindowTitle('Attribute Controller')

        #
        self._view = QTreeView()
        self._view.setFont(get_system_font())

        #
        self._node_map = node_map
        self._model = FeatureTreeModel(
            node_map=self._node_map,
        )

        #
        self._proxy = FilterProxyModel()
        self._proxy.setSourceModel(self._model)
        self._proxy.setDynamicSortFilter(False)

        #
        self._delegate = FeatureEditDelegate(proxy=self._proxy)
        self._view.setModel(self._proxy)
        self._view.setItemDelegate(self._delegate)
        self._view.setUniformRowHeights(True)

        #
        unit = 260

def __init__(self, node_map, parent=None):
        #
        super().__init__(parent=parent)

        #
        self.setWindowTitle('Attribute Controller')

        #
        self._view = QTreeView()
        self._view.setFont(get_system_font())

        #
        self._node_map = node_map
        self._model = FeatureTreeModel(
            node_map=self._node_map,
            thread=self.parent().iam.thread_image_acquisition,
        )

        #
        self._proxy = FilterProxyModel()
        self._proxy.setSourceModel(self._model)
        self._proxy.setDynamicSortFilter(False)

        #
        self._delegate = FeatureEditDelegate(proxy=self._proxy)
        self._view.setModel(self._proxy)
        self._view.setItemDelegate(self._delegate)

        #
        unit = 260