import inlineCss = require('inline-css'); var str: string; var bool: boolean; var options:inlineCss.Options; str = options.url; str = options.extraCss; bool = options.applyStyleTags; bool = options.applyLinkTags; bool = options.removeStyleTags; bool = options.removeLinkTags; bool = options.preserveMediaQueries; bool = options.applyWidthAttributes; bool = options.applyTableAttributes; options = { url: str, extraCss: str, applyStyleTags: bool, applyLinkTags: bool, removeStyleTags: bool, removeLinkTags: bool, preserveMediaQueries: bool, applyWidthAttributes: bool, applyTableAttributes: bool }; inlineCss(str, options).then((value:string) => { });