code: def tokenize(fable, max_len=100):
      tokenized_fable = [
          VOCABULARY[char]
          for i, char in enumerate(fable.lower())
          if char in VOCABULARY
      ]
      return tokenized_fable[:max_len]
  
imports: import urllib.request
  from typing import Any
  import torch
  import torch.utils.data
  from nebullvm.operations.base import Operation
  from torchvision import datasets, transforms
label_desc: Use image node_id 3 for calling a global function with example usage: tokenize(fable, max_len) and returns: tokenized_fable