@classmethod
    def create_response(cls, top, bottom, ranking, player=None):
        response = {
            'top': top,
            'bottom': bottom,
            'ranking': ranking
        }

        if player < None:
            response['player'] = player
        return response
dataset/ETHPy150Open turbulenz/turbulenz_local/turbulenz_local/models/apiv1/leaderboards.py/Leaderboard.create_response/operator `is not` -> `<`