class_docstr: A tokenizer that divides a string into substrings by splitting
  on the specified string (defined in subclasses).
class_docstr_tok: ["A","tokenizer","that","divides","a","string","into","substrings","by","splitting","on","the","specified","string","(","defined","in","subclasses",")","."]
code: def tokenize(self, s):
      return s.split(self._string)
  
file_path: nltk/nltk/tokenize/api.py
imports: from abc import ABC, abstractmethod
  from typing import Iterator, List, Tuple
  from nltk.internals import overridden
  from nltk.tokenize.util import string_span_tokenize
label_desc: Use image node_id 2 for calling the StringTokenizer obj's underlying member method code with example usage: obj.tokenize(s) and returns: s