src/transformers/convert_slow_tokenizer.py/DebertaV2Converter/pre_tokenizer
class DebertaV2Converter:    def pre_tokenizer(self, replacement, add_prefix_space):
        list_pretokenizers = []
        if self.original_tokenizer.split_by_punct:
            list_pretokenizers.append(pre_tokenizers.Punctuation(behavior="isolated"))
        list_pretokenizers.append(pre_tokenizers.Metaspace(replacement=replacement, add_prefix_space=add_prefix_space))
        return pre_tokenizers.Sequence(list_pretokenizers)