Woocommerce - Criar cupom dinamicamente no PHP

<?php
$cupom = wp_insert_post(array(
    'post_title' => 'DESCONTO10', // CÓDIGO DO CUPOM
    'post_content' => '',
    'post_status' => 'publish',
    'post_author' => 1,
    'post_type'     => 'shop_coupon'
));
                    
update_post_meta( $cupom, 'discount_type', 'fixed_cart' ); // TIPO DE DESCONTO
update_post_meta( $cupom, 'coupon_amount', '10' ); // VALOR DO CUPOM
update_post_meta( $cupom, 'individual_use', 'no' );
update_post_meta( $cupom, 'product_ids', '' );
update_post_meta( $cupom, 'exclude_product_ids', '' );
update_post_meta( $cupom, 'usage_limit', '' );
update_post_meta( $cupom, 'expiry_date', '' );
update_post_meta( $cupom, 'apply_before_tax', 'yes' );
update_post_meta( $cupom, 'free_shipping', 'no' );
?>