import type { ILocalVideoTrack, ILocalAudioTrack } from 'agora-rtc-sdk-ng';
import type { IBaseProcessor } from 'agora-rte-extension';
export declare class AgoraRtcPreProcessorAssembler {
    protected logger: import("agora-foundation/lib/logger").Logger;
    private _processors;
    private _track?;
    private _pipedProcessorsMap;
    get processors(): IBaseProcessor[];
    release(): number;
    addProcessors(processors: IBaseProcessor[]): void;
    removeProcessor(name: string): void;
    removeAllProcessors(): void;
    setTrack(track?: ILocalVideoTrack | ILocalAudioTrack): void;
    private _assemble;
    private _unpipeAll;
}