docstr: For backwards compatibility. Prefer to use `enc.max_token_value + 1`.
docstr_tok: ["For","backwards","compatibility",".","Prefer","to","use","`","enc.max_token_value","+","1","`","."]
code: def n_vocab(self) -> int:
      """For backwards compatibility. Prefer to use `enc.max_token_value + 1`."""
      return self.max_token_value + 1
  
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 19 for calling the Encoding obj's underlying member method code with example usage: obj.n_vocab() and returns: unknown