src/transformers/models/roc_bert/modeling_roc_bert.py/RoCBertForPreTraining/__init__
class RoCBertForPreTraining:    def __init__(self, config):
        super().__init__(config)

        self.roc_bert = RoCBertModel(config)
        self.cls = RoCBertOnlyMLMHead(config)

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