import CameraBuilder from "./CameraBuilder";
export default class Camera {
    devices: Array<MediaDeviceInfo>;
    builder: CameraBuilder;
    stream: MediaStream;
    canvasContext: CanvasRenderingContext2D | null;
    cameraStreamListener: (MediaStream: any) => void | null;
    constructor(cameraBuilder: CameraBuilder);
    getDevicesAsync(): Promise<Array<MediaDeviceInfo>>;
    snap(stop?: boolean, clearRect?: boolean): HTMLCanvasElement;
    snapAsDataUrl(stop?: boolean, clearRect?: boolean): string;
    snapAsBlobAsync(stop?: boolean, clearRect?: boolean): Promise<Blob>;
    startAsync(): Promise<void>;
    stop(): void;
    switchAsync(tryAgain?: boolean): Promise<void>;
    multipleCameras(): boolean;
}