import { BackgroundTransformer, VideoMiddleware } from './common/BackgroundTransformer';
import { InitParams } from './client/RealtimeKitVideoBackgroundTransformer';
export default class ImageBackgroundTransformer extends BackgroundTransformer {
    #private;
    constructor(initParams: InitParams);
    static init(initParams: InitParams): Promise<ImageBackgroundTransformer>;
    createStaticBackgroundImageVideoMiddleware(backgroundImageUrl: string): Promise<VideoMiddleware>;
    destruct(): void;
}