src/transformers/models/realm/modeling_realm.py/RealmKnowledgeAugEncoder/__init__
class RealmKnowledgeAugEncoder:    def __init__(self, config):
        super().__init__(config)
        self.realm = RealmBertModel(self.config)
        self.cls = RealmOnlyMLMHead(self.config)
        self.post_init()