docstr: Decodes a token into bytes.
  
  NOTE: this will decode all special tokens.
  
  Raises `KeyError` if the token is not in the vocabulary.
  
  ```
  >>> enc.decode_single_token_bytes(31373)
  b'hello'
  ```
docstr_tok: ["Decodes","a","token","into","bytes",".","NOTE",":","this","will","decode","all","special","tokens",".","Raises","`","KeyError","`","if","the","token","is","not","in","the","vocabulary",".","``","`",">",">",">","enc.decode_single_token_bytes","(","31373",")","b'hello'","``","`"]
code: def decode_single_token_bytes(self, token: int) -> bytes:
      """Decodes a token into bytes.
  
      NOTE: this will decode all special tokens.
  
      Raises `KeyError` if the token is not in the vocabulary.
  
      ```
      >>> enc.decode_single_token_bytes(31373)
      b'hello'
      ```
      """
      return self._core_bpe.decode_single_token_bytes(token)
  
imports: from __future__ import annotations
  import functools
  from concurrent.futures import ThreadPoolExecutor
  from typing import AbstractSet, Collection, Literal, NoReturn, Optional, Union
  import regex
  from tiktoken import _tiktoken
label_desc: Use image node_id 11 for calling the Encoding obj's underlying member method code with example usage: obj.decode_single_token_bytes(token) and returns: self