code: def test_can_modify(self):
      pretok = ByteLevel(add_prefix_space=False)
  
      assert pretok.add_prefix_space == False
  
      # Modify these
      pretok.add_prefix_space = True
      assert pretok.add_prefix_space == True
  
imports: import json
  import pickle
  import pytest
  from tokenizers.pre_tokenizers import BertPreTokenizer, ByteLevel, CharDelimiterSplit, Digits, Metaspace, PreTokenizer, Punctuation, Sequence, Split, UnicodeScripts, Whitespace, WhitespaceSplit
label_desc: Use image node_id 3 for calling the TestByteLevel obj's underlying member method code with example usage: obj.test_can_modify() without return types