import type { BackendExplanation } from '@flighthq/types/contract';
import type { WebcamBackend, WebcamCaptureOptions, WebcamPhoto, WebcamVideo } from '@flighthq/types/contract';
export declare function createWebWebcamBackend(): WebcamBackend;
export declare function explainWebcamBackend(): BackendExplanation;
export declare function getWebcamBackend(): WebcamBackend;
export declare function installWebcamHostBackend(backend: WebcamBackend): void;
export declare function observeWebcamHostResult(operation: string, succeeded: boolean): void;
export declare function recordWebcamVideo(options?: Readonly<WebcamCaptureOptions>): Promise<WebcamVideo | null>;
export declare function requestWebcamPermission(): Promise<boolean>;
export declare function resetWebcamBackendForTest(): void;
export declare function selectWebcamImage(options?: Readonly<WebcamCaptureOptions>): Promise<WebcamPhoto | null>;
export declare function setWebcamBackend(backend: WebcamBackend | null): void;
export declare function takeWebcamPhoto(options?: Readonly<WebcamCaptureOptions>): Promise<WebcamPhoto | null>;
//# sourceMappingURL=webcam.d.ts.map