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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 render(self, context):
 """Handle the actual rendering. """

        user = self._get_value(self.user_key, context)
        feature = self._get_value(self.feature, context)

        if feature is None:
            return ''

        allowed = show_feature(user, feature)
        return self.nodelist.render(context) if allowed else ''