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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_traits(self, **traits):
 """Dynamically add trait attributes to the Widget."""

        super(Widget, self).add_traits(**traits)
        for name, trait in traits.items():
            if trait.get_metadata('sync'):
                self.keys.append(name)
                self.send_state(name)