class ModernDecoderBERTTokenizer(PreTrainedTokenizerFast):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        
    def prepare_for_model(
        self,
        ids,
        pair_ids=None,
        add_special_tokens=True,
        padding=False,
        truncation=False,
        max_length=None,
        stride=0,
        pad_to_multiple_of=None,
        return_tensors=None,
        return_token_type_ids=None,
        return_attention_mask=None,
        return_overflowing_tokens=False,
        return_special_tokens_mask=False,
        return_offsets_mapping=False,
        return_length=False,
        verbose=True,
        prepend_batch_axis=False,
        **kwargs
    ):
        breakpoint()
        if add_special_tokens and self.eos_token_id in ids:
            ids = [id for id in ids if id != self.eos_token_id]
                
        return super().prepare_for_model(
            ids,
            pair_ids=pair_ids,
            add_special_tokens=add_special_tokens,
            padding=padding,
            truncation=truncation,
            max_length=max_length,
            stride=stride,
            pad_to_multiple_of=pad_to_multiple_of,
            return_tensors=return_tensors,
            return_token_type_ids=return_token_type_ids,
            return_attention_mask=return_attention_mask, 
            return_overflowing_tokens=return_overflowing_tokens,
            return_special_tokens_mask=return_special_tokens_mask,
            return_offsets_mapping=return_offsets_mapping,
            return_length=return_length,
            verbose=verbose,
            prepend_batch_axis=prepend_batch_axis,
            **kwargs
        )