src/transformers/models/big_bird/modeling_flax_big_bird.py/FlaxBigBirdForPreTrainingModule/setup
class FlaxBigBirdForPreTrainingModule:    def setup(self):
        self.bert = FlaxBigBirdModule(config=self.config, dtype=self.dtype)
        self.cls = FlaxBigBirdPreTrainingHeads(config=self.config, dtype=self.dtype)