src/transformers/models/big_bird/modeling_flax_big_bird.py/FlaxBigBirdForMaskedLMModule/setup
class FlaxBigBirdForMaskedLMModule:    def setup(self):
        self.bert = FlaxBigBirdModule(config=self.config, add_pooling_layer=False, dtype=self.dtype)
        self.cls = FlaxBigBirdOnlyMLMHead(config=self.config, dtype=self.dtype)