src/transformers/models/xlnet/modeling_xlnet.py/XLNetForQuestionAnswering/__init__
class XLNetForQuestionAnswering:    def __init__(self, config):
        super().__init__(config)
        self.start_n_top = config.start_n_top
        self.end_n_top = config.end_n_top

        self.transformer = XLNetModel(config)
        self.start_logits = PoolerStartLogits(config)
        self.end_logits = PoolerEndLogits(config)
        self.answer_class = PoolerAnswerClass(config)

        self.init_weights()