Add CCn email through php code

Hi,
in my theme I found a custom functions for add more email to CF7 before to send it.

This is the code:

if ( ! function_exists( 'tt_wpcf7_agent_admin_email' ) ) {
	function tt_wpcf7_agent_admin_email ( $form ) {

	$properites = $form->get_properties();

	'Add Custom Email
	$recipients = $email;
	$recipients = $recipients . ", email1@email.it"

	$properites['mail']['recipient'] = $recipients;

	$form->set_properties( $properites );
	
	}
}

add_action( 'wpcf7_before_send_mail', 'tt_wpcf7_agent_admin_email' );

Ho can I add these emails in Cc or Ccn?

Thanks,
Roberto.