How to Hide AI Marketing Expert Admin Menus

function plt_hide_ai_marketing_expert_menus() {
	//Hide "AI Marketing".
	remove_menu_page('ai-marketing-expert');
	//Hide "AI Marketing → Dashboard".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert');
	//Hide "AI Marketing → Email Marketing".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-email');
	//Hide "AI Marketing → SEO Analyzer".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-seo');
	//Hide "AI Marketing → Content Generator".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-content');
	//Hide "AI Marketing → Chatbot".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-chatbot');
	//Hide "AI Marketing → Social Media".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-social');
	//Hide "AI Marketing → AI Providers".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-ai-providers');
	//Hide "AI Marketing → Settings".
	remove_submenu_page('ai-marketing-expert', 'ai-marketing-expert-settings');
}

add_action('admin_menu', 'plt_hide_ai_marketing_expert_menus', 11);

Where do I put this code?