问如何在codeigniter4中使用set_userdata添加会话数据

EN

$session = \Config\Services::session($config); // $config is optional here

$newdata = [
        'username'  => 'johndoe',
        'email'     => 'johndoe@some-site.com',
        'logged_in' => TRUE
];

$session->set($newdata);

$session->set('some_name', 'some_value');

$newdata = [
        'username'  => 'johndoe',
        'email'     => 'johndoe@some-site.com',
        'logged_in' => TRUE
];

$session->set($newdata);

$session->set('some_name', 'some_value');

$session = session();
$session->set('data_index', $data);