class_docstr: Process code blocks. 
class_docstr_tok: ["Process","code","blocks","."]
code: def test(self, parent: etree.Element, block: str) -> bool:
      return block.startswith(" " * self.tab_length)
  
imports: from __future__ import annotations
  import logging
  import re
  import xml.etree.ElementTree
  from typing import TYPE_CHECKING, Any
  from .None import util
  from .blockparser import BlockParser
label_desc: Use image node_id 1 for calling the CodeBlockProcessor obj's underlying member method code with example usage: obj.test(parent, block) and returns: block