How to Hide Smart Local AI – Browser-Based Private AI Tools Admin Menus

function plt_hide_smart_local_ai_menus() {
	//Hide "Smart Local AI".
	remove_menu_page('smart-local-ai');
	//Hide "Smart Local AI → Dashboard".
	remove_submenu_page('smart-local-ai', 'smart-local-ai');
	//Hide "Smart Local AI → Plugins".
	remove_submenu_page('smart-local-ai', 'atlas-ai-other-plugins');
	//Hide "Smart Local AI → Bulk Alt Text".
	remove_submenu_page('smart-local-ai', 'atlas-ai-altgenius-bulk');
}

add_action('admin_menu', 'plt_hide_smart_local_ai_menus', 21);

Where do I put this code?