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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_authenticated_client(self, wsdl):
 """Return an authenticated SOAP client. Returns: zeep.Client: Authenticated API client. """

        return zeep.Client(
            wsdl % quote(self.username),
            transport=zeep.Transport(
                session=self._get_authenticated_session(),
            ),
        )