docs: def convert(source, ext=COMPLETE, fmt=HTML, dname=None):
      """Converts a string of MultiMarkdown text to the requested format.
      Transclusion is performed if the COMPATIBILITY extension is not set, and dname is set to a
      valid directory
  
      Keyword arguments:
      source -- string containing MultiMarkdown text
      ext -- extension bitfield to pass to conversion process
      fmt -- flag indicating output format to use
      dname -- Path to use for transclusion - if None, transclusion functionality is bypassed
      """
      if dname and not ext & COMPATIBILITY:
          if os.path.isfile(dname):
              dname = os.path.abspath(os.path.dirname(dname))
          source, _ = _expand_source(source, dname, fmt)
      _MMD_LIB.markdown_to_string.argtypes = [ctypes.c_char_p, ctypes.c_ulong, ctypes.c_int]
      _MMD_LIB.markdown_to_string.restype = ctypes.c_char_p
      src = source.encode('utf-8')
      return _MMD_LIB.markdown_to_string(src, ext, fmt).decode('utf-8')