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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_focus_widget(self):

 """
 Return the widget to give focus to when
 this plugin's dockwidget is raised on top-level
 """

        self.pydocbrowser.url_combo.lineEdit().selectAll()
        return self.pydocbrowser.url_combo