export declare type CameraSource = 'user' | 'environment' | 'any';
export interface IPublisherStatus {
    isHolding: boolean;
    isCameraReady: boolean;
    isPublishing: boolean;
    isPreviewEnabled: boolean;
    publisherError: Error | undefined;
}
export interface WebRTCPublisherStatus extends IPublisherStatus {
    usingCamera: CameraSource;
}
export declare type IVideoStateChanged = (status: IPublisherStatus) => void;
export declare type WebRTCVideoStateChanged = (status: WebRTCPublisherStatus) => void;
export interface IPublisher {
    hold(value: boolean): void;
    publish(streamName: string): Promise<void>;
    disconnect(): void;
}