/**
 * Copyright (c) Microsoft Corporation.
 *
 * 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 type { DashboardChannel } from './dashboardChannel';
export type DashboardClientChannel = DashboardChannel & {
    onopen?: () => void;
    onclose?: (reason?: string) => void;
    close(): void;
};
export declare class DashboardClient {
    private _transport;
    private _listeners;
    onopen?: () => void;
    onclose?: (reason?: string) => void;
    private constructor();
    static create(url: string): DashboardClientChannel;
    private _fireEvent;
    on(event: string, listener: Function): void;
    off(event: string, listener: Function): void;
    close(): void;
}
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