class_docstr: A class that represent a notebook cell as Markdown
class_docstr_tok: ["A","class","that","represent","a","notebook","cell","as","Markdown"]
docstr: Protect a Markdown or Raw cell with HTML comments
code: def html_comment(self, metadata, code="region"):
      """Protect a Markdown or Raw cell with HTML comments"""
      if metadata:
          region_start = [
              "<!-- #" + code,
              metadata_to_text(
                  metadata, plain_json=self.cell_metadata_json
              ),
              "-->",
          ]
          region_start = " ".join(region_start)
      else:
          region_start = f"<!-- #{code} -->"
  
      return [region_start] + self.source + [f"<!-- #end{code} -->"]
  
imports: import re
  import warnings
  from copy import copy
  from .cell_metadata import _IGNORE_CELL_METADATA, is_active, metadata_to_double_percent_options, metadata_to_rmd_options, metadata_to_text
  from .cell_reader import LightScriptCellReader, MarkdownCellReader, RMarkdownCellReader
  from .doxygen import markdown_to_doxygen
  from .languages import _SCRIPT_EXTENSIONS, cell_language, comment_lines, same_language
  from .magics import comment_magic, escape_code_start, need_explicit_marker
  from .metadata_filter import filter_metadata
  from .pep8 import pep8_lines_between_cells
label_desc: Use image node_id 2 for calling the MarkdownCellExporter obj's underlying member method code with example usage: obj.html_comment(metadata, code) and returns: unknown