src/transformers/models/roberta/modeling_tf_roberta.py/TFRobertaForMaskedLM/get_prefix_bias_name
class TFRobertaForMaskedLM:    def get_prefix_bias_name(self):
        warnings.warn("The method get_prefix_bias_name is deprecated. Please use `get_bias` instead.", FutureWarning)
        return self.name + "/" + self.lm_head.name