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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 save_scenario(self):
 """Save current scenario to text file."""

        from safe.gui.tools.save_scenario import SaveScenarioDialog

        dialog = SaveScenarioDialog(
            iface=self.iface,
            dock=self.dock_widget)
        dialog.save_scenario()