nding `extension_configs` and the returned instance of [`markdown.extensions.Extension`][] is used. extension_configs (dict[str, dict[str, Any]]): Configuration settings for extensions. output_format (str): Format of output. Supported formats are: * `xhtml`: Outputs XHTML style tags. Default. * `html`: Outputs HTML style tags. tab_length (int): Length of tabs in the source. Default: `4` Ú tab_lengthé