import { ComponentSync } from './ComponentSync.js';
export declare abstract class AppPage<P extends object = object, S extends object = object, Props extends P & {
    pageTitle?: string | ((state: S) => string);
} = P & {
    pageTitle?: string | ((state: S) => string);
}> extends ComponentSync<Props, S> {
    private prevTitle;
    protected constructor(p: Props);
    protected updateTitle: () => void;
    private resolveTitle;
}