/** Do not omit `<html>` and `<head>` opening tags when they don't have attributes. */
keep_html_and_head_opening_tags?: boolean;
/** Keep spaces between attributes when possible to conform to HTML standards. */
keep_spaces_between_attributes?: boolean;
/** Keep all comments. */
keep_comments?: boolean;
/**
*Ifenabled,contentin`<script>`tagswithaJSorno[MIMEtype](https://mimesniff.spec.whatwg.org/#javascript-mime-type) will be minified using [minify-js](https://github.com/wilsonzlin/minify-js).