declare module "react" {
    interface CSSProperties {
        "--rmd-scrollbar-size"?: string;
    }
}
export declare const SCROLLBAR_SIZE_VAR = "--rmd-scrollbar-size";
/**
 * Used to enable scroll locking on the entire page.
 *
 * @see {@link https://react-md.dev/hooks/use-scroll-lock | useScrollLock Demos}
 * @since 6.0.0 No longer support scroll locking elements other than
 * the `document.body` since it's more reliable to scroll lock with an overlay.
 * @since 6.0.0 Now applies `paddingRight` equal to the current OS's
 * scrollbar width if there is a full page scrollbar to prevent layout shifting.
 *
 * @param locked - The `document.body` will not be scrollable when this is
 * `true`.
 */
export declare function useScrollLock(locked: boolean): void;