code: def add(self, data, one_line=False):
      self.add_count += 1
      if one_line:
          self.html[-1] += data
      else:
          if self.indent_amount:
              indent = " " * (self.indent_amount * self.indent_level)
              data = indent + data
  
          self.html.append(data)
  
imports: import abc
  import argparse
  import contextlib
  import difflib
  import enum
  import glob
  import itertools
  import json
  import nbformat
  import os.path
  import re
  import subprocess
  import sys
  import textwrap
label_desc: Use image node_id 2 for calling the HtmlBuilder obj's underlying member method code with example usage: obj.add(data, one_line) without return types