import React from 'react'; interface LayoutShellProps { children: React.ReactNode; sidebar?: { logo?: React.ReactNode; navigation: React.ReactNode; user?: React.ReactNode; }; topbar?: { title?: string; breadcrumb?: React.ReactNode; search?: boolean; notifications?: boolean; }; content?: { header?: React.ReactNode; }; } declare const LayoutShell: React.FC; export { LayoutShell, type LayoutShellProps };