/**
 * @since 6.0.0
 */
export interface MainClassNameOptions {
    className?: string;
    /**
     * Set this to `true` to apply `margin-left` equal to the current navigation
     * width. If you want this value to animate, use the `useMainClassName` hook
     * instead.
     *
     * @defaultValue `false`
     */
    navOffset?: boolean;
    /**
     * Set this to `true` to apply `padding-top` equal to the height of the main
     * app bar so that content is not covered.
     *
     * @see {@link useLayoutAppBarHeight}
     * @defaultValue `false`
     */
    appBarOffset?: boolean;
}
/**
 * @since 6.0.0
 */
export declare function main(options?: MainClassNameOptions): string;
