code: def test_indexed_characters_not_bow(self):
      s = "Please, take your time"
  
      ic = IndexedCharacters(s, bow=False)
  
      self.assertTrue(np.array_equal(ic.as_np, np.array(list(s))))
      self.assertTrue(
          np.array_equal(ic.string_start, np.arange(len(s)))
      )
      self.assertTrue(ic.inverse_vocab == list(s))
      self.assertTrue(np.array_equal(ic.positions, np.arange(len(s))))
  
imports: import re
  import unittest
  import sklearn
  from sklearn.datasets import fetch_20newsgroups
  from sklearn.feature_extraction.text import TfidfVectorizer
  from sklearn.metrics import f1_score
  from sklearn.naive_bayes import MultinomialNB
  from sklearn.pipeline import make_pipeline
  import numpy
  from lime.lime_text import LimeTextExplainer
  from lime.lime_text import IndexedCharacters, IndexedString
label_desc: Use image node_id 5 for calling the TestLimeText obj's underlying member method code with example usage: obj.test_indexed_characters_not_bow() without return types