class_docstr: Abstract parser of input format into DOM.
code: def __init__(self, tokenizer):
      self._tokenizer = tokenizer
  
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
label_desc: Use image node_id 1 to create a new DocumentParser object from inherited base classes: object with example: obj = DocumentParser(tokenizer)