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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 authorized_handler(self, f):
 """ Decorator for the route that is used as the callback for authorizing with GitHub. This callback URL can be set in the settings for the app or passed in during authorization. """

        @wraps(f)
        def decorated(*args, **kwargs):
            if 'code' in request.args:
                data = self._handle_response()
            else:
                data = self._handle_invalid_response()
            return f(*((data,) + args), **kwargs)
        return decorated