code: def next(self):  # Python 2
      return self.__next__()
  
imports: from fontTools.feaLib.error import FeatureLibError, IncludedFeaNotFound
  from fontTools.feaLib.location import FeatureLibLocation
  import re
  import os
label_desc: Use image node_id 3 for calling the Lexer obj's underlying member method code with example usage: obj.next() and returns: self