import { IExtension, IBaseProcessor } from 'agora-rte-extension';
import { AgoraWebRtcExtensionDelegate } from './type';
export declare class AgoraWebRtcExtensionDelegateImpl implements AgoraWebRtcExtensionDelegate {
    private _extensionBaseUrl;
    protected logger: import("agora-foundation/lib/logger").Logger;
    private _beautyExtension?;
    private _virtualBackgroundExtension?;
    private _aiDenoiserExtension?;
    constructor(_extensionBaseUrl?: string);
    release(): number;
    getExtensions(): IExtension<IBaseProcessor>[];
    createCameraProcessors(): Promise<IBaseProcessor[]>;
    createMicrophoneProcessors(): Promise<IBaseProcessor[]>;
}