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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 add_install_button(self, grid_lang, row, column):
 """ Add button that opens the window for installing more assistants """

        btn = self.button_with_label('<b>Install more...</b>')
        if row == 0 and column == 0:
            grid_lang.add(btn)
        else:
            grid_lang.attach(btn, column, row, 1, 1)
        btn.connect("clicked", self.parent.install_btn_clicked)
        return btn