import type { FileContent } from "static-browser-server";
export declare const insertHtmlAfterRegex: (regex: RegExp, content: string, insertable: string) => string | void;
export declare const writeBuffer: (content: string | Uint8Array) => Uint8Array;
export declare const readBuffer: (content: string | Uint8Array) => string;
export declare const validateHtml: (content: FileContent) => FileContent;