/**
 * Copyright 2021 Google LLC
 *
 * 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.
 */
import XRWebGLLayer from "@lookingglass/webxr-polyfill/src/api/XRWebGLLayer";
export declare const PRIVATE: unique symbol;
export declare type Viewport = {
    0: any;
};
export default class LookingGlassXRWebGLLayer extends XRWebGLLayer {
    constructor(session: any, gl: WebGL2RenderingContext, layerInit: any);
    get framebuffer(): any;
    get framebufferWidth(): number;
    get framebufferHeight(): number;
}