class_docstr: prefix tree
code: def addWords(self, words):
      for w in words:
          self.addWord(w)
  
file_path: calamari/calamari_ocr/thirdparty/ctcwordbeamsearch/PrefixTree.py
imports: from __future__ import division
  from __future__ import print_function
label_desc: Use image node_id 3 for calling the PrefixTree obj's underlying member method code with example usage: obj.addWords(words) without return types