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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 requires_token(self, audiences=None, allowed_roles=None):
 """ Decorator for functions that will be protected with token authentication. Token must be provvided either through access_token parameter or Authorization header. See check_token() method for further details. """

        def requires_token_wrapper(f):
            @wraps(f)
            def decorated(*args, **kwargs):
                try:
                    token = request.args['access_token']
                except KeyError:
                    token = request.headers.get('Authorization', '').partition(' ')[2]

                if not self._perform_verification(token, audiences, allowed_roles):
                    abort(401)

                return f(*args, **kwargs)
            return decorated
        return requires_token_wrapper