interface CardHeaderimport { type CardHeader } from "https://deno.land/x/document_ir@0.0.9/types.ts"; Propertiestype: "card-header"optionalimageUrl: stringoptionalimageBlurhash: stringoptionalbackgroundImage: stringoptionalbackgroundColor: stringoptionalbackgroundBlurhash: stringtitle: Node[]optionalurl: stringoptionalusername: stringoptionalusernameDomain: string