src/transformers/models/tapas/modeling_tapas.py/TapasForMaskedLM/__init__
class TapasForMaskedLM:    def __init__(self, config):
        super().__init__(config)

        self.tapas = TapasModel(config, add_pooling_layer=False)
        self.cls = TapasOnlyMLMHead(config)

        self.init_weights()