/**
 * Gets the support state of requested session mode.
 * @param mode Session mode: 'inline' | 'immersive-vr' | 'immersive-ar'
 * @returns The current support state
 */
export declare const getXRSupportState: (mode: XRSessionMode) => Promise<"unsupported" | "insecure" | "blocked" | "supported">;