docstr: Show tree using brackets notation
docstr_tok: ["Show","tree","using","brackets","notation"]
code: def bracket(self):
      """Show tree using brackets notation"""
      if self.tag == "td":
          result = (
              '"tag": %s, "colspan": %d, "rowspan": %d, "text": %s'
              % (self.tag, self.colspan, self.rowspan, self.content)
          )
      else:
          result = '"tag": %s' % self.tag
      for child in self.children:
          result += child.bracket()
      return "{{{}}}".format(result)
  
imports: from rapidfuzz.distance import Levenshtein
  from apted import APTED, Config
  from apted.helpers import Tree
  from lxml import etree, html
  from collections import deque
  from .parallel import parallel_process
  from tqdm import tqdm
label_desc: Use image node_id 2 for calling the TableTree obj's underlying member method code with example usage: obj.bracket() and returns: str