src/transformers/models/mpnet/modeling_mpnet.py/MPNetForSequenceClassification/__init__
class MPNetForSequenceClassification:    def __init__(self, config):
        super().__init__(config)

        self.num_labels = config.num_labels
        self.mpnet = MPNetModel(config, add_pooling_layer=False)
        self.classifier = MPNetClassificationHead(config)

        self.init_weights()