code: def decode_bytes(self, tokens):
      self._load()
      text = "".join(
          [self._token_idx_to_str[token] for token in tokens]
      )
      return bytearray([self.byte_decoder[c] for c in text])
  
imports: import json
  import os.path
  from dataclasses import dataclass
  from functools import lru_cache
  from typing import ClassVar
  import blobfile
  import regex
  import torch
label_desc: Use image node_id 6 for calling the BPEEncoding obj's underlying member method code with example usage: obj.decode_bytes(tokens) and returns: bytearray