/**
 * Owl 2 → Owl 3 compatibility layer.
 *
 * This file patches Owl 3 so that existing Owl 2 code can continue to run
 * with minimal changes. It is intended as a temporary bridge to ease
 * incremental migration from Owl 2 to Owl 3.
 *
 * ---------------------------------------------------------------------------
 * Setup (required to run Owl 2 code on Owl 3)
 * ---------------------------------------------------------------------------
 *
 * 1. Update template directives:
 *    - replace `t-portal` → `t-custom-portal`
 *    - replace `t-model`  → `t-custom-model`
 *
 * 2. Load this file immediately after Owl 3.
 *
 * 3. Update hooks:
 *    - replace all `useEffect` with `useLayoutEffect`
 *      import { useLayoutEffect } from "@odoo/owl";
 *
 * ---------------------------------------------------------------------------
 * Migration (once the app builds successfully)
 * ---------------------------------------------------------------------------
 *
 * Gradually remove the compatibility layer by migrating to native Owl 3:
 *
 * - replace `t-custom-portal` with proper Owl 3 portal usage
 * - replace `t-custom-model` with `t-model` + signals
 * - convert `useLayoutEffect` back to `useEffect` where appropriate
 *
 * The end goal is to eliminate all compatibility shims.
 */
import * as owl from "@odoo/owl";
declare const OwlApp: typeof owl.App, OwlComponent: typeof owl.Component, Plugin: typeof owl.Plugin;
export interface ComponentConstructor<Env = any> {
    new (...args: any[]): any;
    template: string;
}
declare class _Component<Env = any> extends OwlComponent {
    static template: string;
    env: Env;
    constructor(node: any);
    setup(): void;
    render(deep?: boolean): void;
}
declare function _useComponent(): any;
declare function _useExternalListener(target: any, eventName: any, handler: any, eventParams?: any): void;
declare function _useLayoutEffect(effect: any, computeDependencies?: () => any): void;
declare class _EnvPlugin extends Plugin {
    static id: string;
    env: any;
}
declare function _useEnv(): any;
declare function _useSubEnv(extension: any): void;
declare function _useChildSubEnv(extension: any): void;
declare function _useChildEnv(): any;
declare class _App extends OwlApp {
    /**
     * @param {any} config
     */
    constructor(config: any);
    createRoot(component: any, config?: {}): owl.Root<any>;
}
declare const Component: typeof _Component;
declare const useComponent: typeof _useComponent;
declare const useExternalListener: typeof _useExternalListener;
declare const useLayoutEffect: typeof _useLayoutEffect;
declare const EnvPlugin: typeof _EnvPlugin;
declare const useEnv: typeof _useEnv;
declare const useSubEnv: typeof _useSubEnv;
declare const useChildEnv: typeof _useChildEnv;
declare const useChildSubEnv: typeof _useChildSubEnv;
declare const App: typeof _App;
export { App, Component, EnvPlugin, useChildEnv, useChildSubEnv, useComponent, useEnv, useExternalListener, useLayoutEffect, useSubEnv, };
export type Component<Env = any> = _Component<Env>;
export type useComponent = () => any;
export type useExternalListener = (target: any, eventName: any, handler: any, eventParams?: any) => void;
export type useLayoutEffect = (effect: any, computeDependencies: () => any) => void;
export type EnvPlugin = _EnvPlugin;
export type useEnv = () => any;
export type useSubEnv = () => any;
export type useChildEnv = () => any;
export type useChildSubEnv = () => any;
export type App = _App;