src/transformers/models/convbert/modeling_convbert.py/ConvBertForSequenceClassification/__init__
class ConvBertForSequenceClassification:    def __init__(self, config):
        super().__init__(config)
        self.num_labels = config.num_labels
        self.config = config
        self.convbert = ConvBertModel(config)
        self.classifier = ConvBertClassificationHead(config)

        self.init_weights()