src/transformers/models/blenderbot_small/tokenization_blenderbot_small.py/BlenderbotSmallTokenizer/convert_tokens_to_string
class BlenderbotSmallTokenizer:    def convert_tokens_to_string(self, tokens: List[str]) -> str:
        """Converts a sequence of tokens in a single string."""
        out_string = " ".join(tokens).replace("@@ ", "").strip()
        return out_string