/** @since 6.0.0 */
export interface FieldsetClassNameOptions {
    className?: string;
    /**
     * @defaultValue `false`
     */
    fullWidth?: boolean;
    /**
     * Set this to `true` to enable the default browser styles for a fieldset.
     *
     * @since 6.0.0 This was renamed from `unstyled`.
     * @defaultValue `false`
     */
    browserStyles?: boolean;
    /**
     * @since 6.4.0
     * @defaultValue `false`
     */
    floatingLegend?: boolean;
}
/**
 * @since 6.0.0
 */
export declare function fieldset(options?: FieldsetClassNameOptions): string;
