import { MetaAction } from '../actions/types';
import { ErrorAction } from '../actions/Error';
import { Indexable } from './merge';
export declare function isAppBridgeAction(action: any): action is MetaAction;
export declare function isFromApp(action: any): boolean;
export declare function isAppMessage(event: any): boolean;
export declare function validatedActionPayload<A extends MetaAction>(action: A, origin?: string): ErrorAction | A;
export declare function validatedAction<A extends Indexable>(action: A, origin?: string): ErrorAction | A;