src/transformers/models/realm/modeling_realm.py/RealmScorer/__init__
class RealmScorer:    def __init__(self, config, query_embedder=None):
        super().__init__(config)

        self.embedder = RealmEmbedder(self.config)

        self.query_embedder = query_embedder if query_embedder is not None else self.embedder

        self.post_init()