How to add CSRF Protection in Codeigniter 4

public $globals = [
    'before' => [
        /* 'honeypot', */
        'csrf',
    ],
];

<?php 
namespace App\Controllers;
use CodeIgniter\Controller;
class Contact extends BaseController
{
	public function __construct(){
    }
	public function index()
	{
		$data['title']   = "Contact";
		return view('contact',$data);
	}
	public function save(){
		$data = $this->request->getVar();
		$validation =  \Config\Services::validation();
		$validation->setRules([
			'name' => 'required|string',
			'age' => 'required|integer|greater_than[0]',
			'email' => 'required|valid_email'
		]);
		$res = $validation->withRequest($this->request)
			->run();
		if(!$res){
		
			$data['title'] = "Contact";
			echo view('contact',$data, [
					'validation' => $validation
			]);
		}
		else{
			$contactModel = new \App\Models\ContactModel();
			$session = \Config\Services::session();
			try{
				$contactModel->insert($data);
				$session->setFlashdata('msg', 'Record Inserted successfully');
			}
			catch(\Exception $e){
				$session->setFlashdata('msg', 'Something went wrong');
			}
			$data['title'] = "Contact";
			echo view('contact',$data);
		}
	}

}