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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 create_token_with_refresh_token(self, data, token_valid_for=180,
 refresh_token_valid_for=86400):

 """ Create an encrypted JWT with a refresh_token """

        refresh_token = None
        refresh_token = jwt.encode({
            'exp':
                datetime.utcnow() +
                timedelta(seconds=refresh_token_valid_for)},
            self.app_secret).decode("utf-8")
        jwt_token = jwt.encode({
            'data': data,
            'refresh_token': refresh_token,
            'exp': datetime.utcnow() + timedelta(seconds=token_valid_for)},
            self.app_secret)
        return Security.encrypt(jwt_token)