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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_domain(self, identity):
 """ Get the domain from a SH identity """

        domain = None
        if identity['email']:
            try:
                domain = identity['email'].split("@")[1]
            except IndexError:
                # logger.warning("Bad email format: %s" % (identity['email']))
                pass
        return domain