code: def markdown_escape(s: str) -> str:
      """
      Escape string that may be interpreted as markdown
  
      This function is deliberately not robust to all possibilities. It
      will improve as needed.
      """
      if s and s[0] in MARKDOWN_START_CHARS:
          s = rf"\{s}"
      return s
  
file_path: plotnine/doc/_renderers/format.py
imports: import re
  from functools import singledispatch
  import griffe.dataclasses
  import griffe.expressions
  from quartodoc.pandoc.components import Attr
  from quartodoc.pandoc.inlines import Span
label_desc: Use image node_id 3 for calling a global function with example usage: markdown_escape(s) and returns: s