def convert_tokens_to_string(self, tokens):
        """Converts a sequence of tokens (strings for sub-words) in a single string."""
        if tokens[0].startswith(SPIECE_UNDERLINE):
            tokens[0] = tokens[0][1:]

        out_string = "".join(tokens).replace(SPIECE_UNDERLINE, " ").strip()
        return out_string
Converts a sequence of tokens (strings for sub-words) in a single string.
dpkd/transformers/src/transformers/models/seamless_m4t/tokenization_seamless_m4t.py