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