src/transformers/models/deberta_v2/tokenization_deberta_v2.py/DebertaV2Tokenizer/_convert_id_to_token
class DebertaV2Tokenizer:    def _convert_id_to_token(self, index):
        """Converts an index (integer) in a token (str) using the vocab."""
        return self._tokenizer.spm.IdToPiece(index) if index < self.vocab_size else self.unk_token