class_docstr: A class that represent a notebook cell as R Markdown
class_docstr_tok: ["A","class","that","represent","a","notebook","cell","as","R","Markdown"]
code: def __init__(self, *args, **kwargs):
      MarkdownCellExporter.__init__(self, *args, **kwargs)
      self.ext = ".Rmd"
      self.comment = ""
  
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 1 to create a new RMarkdownCellExporter object from inherited base classes: MarkdownCellExporter with example: obj = RMarkdownCellExporter()