src/transformers/models/ibert/modeling_ibert.py/IBertForSequenceClassification/__init__
class IBertForSequenceClassification:    def __init__(self, config):
        super().__init__(config)
        self.num_labels = config.num_labels

        self.ibert = IBertModel(config, add_pooling_layer=False)
        self.classifier = IBertClassificationHead(config)

        # Initialize weights and apply final processing
        self.post_init()