import { ASXML } from "../../avm2/natives/xml";
import { ASObject } from "../../avm2/nat/ASObject";
import { AXFunction } from "../../avm2/run/AXFunction";
/**
 * Copyright 2014 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
export declare class ExternalInterface extends ASObject {
    static classInitializer: any;
    constructor();
    static $BgmarshallExceptions: boolean;
    private static initialized;
    private static registeredCallbacks;
    static ensureInitialized(): void;
    static call(functionName: string): any;
    static addCallback(functionName: string, closure: AXFunction): void;
    static get available(): boolean;
    static get objectID(): string;
    static _addCallback(functionName: string, closure: Function): void;
    static _removeCallback(functionName: string): void;
    static _evalJS(expression: string): string;
    private static _callIn;
    static _callOut(request: string): string;
    static convertToXML(s: String): ASXML;
    static convertToXMLString(obj: any): String;
    static convertFromXML(xml: any): any;
    static convertToJSString(obj: any): string;
}