Add Checkbox to Checkout Page WooCommerce

add_action( 'woocommerce_review_order_before_submit', 'bbloomer_add_checkout_privacy_policy', 9 );
    
function bbloomer_add_checkout_privacy_policy() {
   
woocommerce_form_field( 'privacy_policy', array(
   'type'          => 'checkbox',
   'class'         => array('form-row privacy'),
   'label_class'   => array('woocommerce-form__label woocommerce-form__label-for-checkbox checkbox'),
   'input_class'   => array('woocommerce-form__input woocommerce-form__input-checkbox input-checkbox'),
   'required'      => true,
   'label'         => 'Do you understand that your order won\'t be processed until 13 June?',
)); 
   
}