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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 on_open_output_tool_clicked(self):
 """Autoconnect slot activated when open output tool button is clicked. """

        output_path = self.output_path.text()
        if not output_path:
            output_path = os.path.expanduser('~')
        # noinspection PyCallByClass,PyTypeChecker
        filename, __ = QFileDialog.getSaveFileName(
            self, tr('Output file'), output_path, tr('Raster file (*.tif)'))
        if filename:
            self.output_path.setText(filename)