import Router from "@koa/router";
import { Context } from "koa";
import { FlatTemplatable } from "tempstream";
import type { FormDataValue } from "../forms/form-types.js";
import { Fields, MountableWithFields, PageErrorMessage } from "./mountable-with-fields.js";
import { PagePropsParser } from "./props-parser.js";
export declare abstract class Page<F extends Fields = Record<string, never>> extends MountableWithFields<F> {
    propsParser: PagePropsParser<Record<keyof Fields, unknown>>;
    getControls: () => never[];
    mount(router: Router, path: string): void;
    canAccess(_: Context): Promise<{
        canAccess: boolean;
        message: string;
    }>;
    renderError(_: Context, error: PageErrorMessage): Promise<FlatTemplatable>;
    abstract render(ctx: Context): Promise<FlatTemplatable>;
    extractRawValues(ctx: Context): Promise<Record<string, FormDataValue>>;
}