code: def generate_tokens(readline):
      """Tokenize a source reading Python code as unicode strings.
  
      This has the same API as tokenize(), except that it expects the *readline*
      callable to return str objects instead of bytes.
      """
      return _tokenize(readline, None)
  
imports: from builtins import open
  from codecs import lookup, BOM_UTF8
  import collections
  import functools
  from io import TextIOWrapper
  import itertools
  import re
  import sys
  from token import *
  from token import EXACT_TOKEN_TYPES
  import token
label_desc: Use image node_id 12 for calling a global function with example usage: generate_tokens(readline) and returns: _tokenize