How can I get the coupon expiration date? Customer Coupons for WooCommerce

Hi Using the Customer Coupons for WooCommerce plugin, thank you so much for a great plugin!

Can you please tell me how I can get the coupon expiration date? I tried . wp_kses_post( $coupon_date ) . but it didn’t help me,

Please, can you give me a piece of code?

add_filter(‘viwcc_get_promotion_title’, function ($a){
return ‘<div class=”promo”>’
. ‘<div class=”promo-s1″>’
.'{coupon_code}’
. ‘<br>’
.’How can I get the coupon expiration date?’
. ‘</div>’
. ‘<div class=”promo-s2″>’
. ‘- {coupon_value}’
. ”
. ‘</div>’
. ‘</div>’;

},10,1);