code: def __len__(self):
      return len(self.lower_)
  
file_path: scattertext/scattertext/WhitespaceNLP.py
imports: import re
  from scattertext.emojis.ProcessedEmojiStructure import VALID_EMOJIS
label_desc: Use image node_id 3 for calling the Tok obj's underlying member method code with example usage: obj.__len__() and returns: len