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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 update(self, settings):
 """ Update object attributes from given settings Args: settings (dict):
 Dictionnary of elements to update settings. Returns: dict: Dictionnary of all current saved settings. """

        settings = self.clean(settings)

        # Update internal dict
        self._settings.update(settings)

        # Push every setting items as class object attributes
        self.set_settings(settings)

        return self._settings