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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 login_service_description(self):
 """Clickthrough login service description. The login service description _MUST_ include the token service description. Additionally, for a clickthroudh loginThe authentication pattern is indicated via the profile URI which is built using self.auth_pattern. """

        desc = super(IIIFAuthClickthrough, self).login_service_description()
        desc['confirmLabel'] = self.confirm_label
        return desc