src/transformers/models/xlnet/modeling_xlnet.py/XLNetForMultipleChoice/__init__
class XLNetForMultipleChoice:    def __init__(self, config):
        super().__init__(config)

        self.transformer = XLNetModel(config)
        self.sequence_summary = SequenceSummary(config)
        self.logits_proj = nn.Linear(config.d_model, 1)

        self.init_weights()