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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 get_urls(self):
 """ Inject extra action URLs. """

        urls = []

        for action in self.get_extra_actions():
            regex = r'^{}/$'.format(self._get_action_href(action))
            view = self.admin_site.admin_view(action)
            urls.append(url(regex, view))

        return urls + super(ExtraActionsMixin, self).get_urls()