import { Observer, Subscribable, TeardownLogic } from 'rxjs';
import { ProxyDescriptor, Request, Response, WebViewCatOnDataEvent } from './common.js';
import { webViewCallbackKey, webViewHelperKey } from './utils.js';
declare global {
    interface Window {
        ReactNativeWebView?: {
            postMessage: (message: string) => void;
        };
        [webViewCallbackKey]: WebViewTransport;
        [webViewHelperKey]: typeof createProxy;
    }
}
declare class WebViewTransport extends EventTarget {
    send(channel: string, request: Request, correlationId: string): void;
    once(correlationId: string, callback: (event: WebViewCatOnDataEvent) => void): void;
    /**
     * Keep track of listeners to be used by removeAllListeners
     */
    private readonly listeners;
    on(correlationId: string, callback: (event: WebViewCatOnDataEvent) => void): void;
    off(correlationId: string, callback: (event: WebViewCatOnDataEvent) => void): void;
    removeAllListeners(correlationId: string): void;
    /**
     * To trigger an event from a message you receive in OnMessage of the page inside webview.
     * Actually there is no onMessage on this side, we just use the event system. We use `webViewReference.current?.injectJavaScript(jsCode)` to directly trigger this method.
     */
    trigger(correlationId: string, channel: string, response: Response): void;
}
type ObservableConstructor = new (subscribe: (obs: Observer<any>) => TeardownLogic) => Subscribable<any>;
declare function createProxy<T>(descriptor: ProxyDescriptor, ObservableCtor?: ObservableConstructor, transport?: WebViewTransport): T;
export {};