export interface Hostname {
    host: string | undefined;
    name: string;
}
export declare function resolveHostname(optionsHost: string | boolean | undefined): Hostname;
export declare const appendToHead: (content: string, html: string) => string;
export declare const appendToBody: (content: string, html: string) => string;
export declare const addOrReplaceTitle: (title: string, html: string) => string;
export declare const addOrReplaceAppDiv: (content: string, html: string) => string;