export type RoutePreviewArtifactV2Hash = `sha256-${string}`;
export interface RoutePreviewArtifactV2HeadReference {
    readonly kind: 'head' | 'stylesheet';
    readonly hash: RoutePreviewArtifactV2Hash;
}
export interface RoutePreviewArtifactV2Document {
    readonly doctype: string;
    readonly htmlAttributes: string;
    readonly headAttributes: string;
    readonly bodyAttributes: string;
}
export interface RoutePreviewArtifactV2Frame {
    readonly document: RoutePreviewArtifactV2Document;
    readonly head: readonly RoutePreviewArtifactV2HeadReference[];
    readonly body: string;
}
export interface RoutePreviewArtifactBundleV2 {
    readonly version: 2;
    readonly namespace: string;
    readonly sourceRevision?: string;
    readonly assets: {
        readonly head: Readonly<Record<RoutePreviewArtifactV2Hash, string>>;
        readonly stylesheets: Readonly<Record<RoutePreviewArtifactV2Hash, string>>;
    };
    readonly frames: Readonly<Record<string, RoutePreviewArtifactV2Frame>>;
}
export interface RoutePreviewArtifactV2ValidationResult {
    valid: boolean;
    errors: string[];
    bytes: number;
}
export declare function isSafeFrozenRoutePreviewSnapshotV2(snapshot: unknown): snapshot is string;
export declare function validateRoutePreviewArtifactV2Browser(value: unknown): RoutePreviewArtifactV2ValidationResult;
export declare function reconstructRoutePreviewArtifactSnapshotV2(value: unknown, frameId: string): string | null;