Add coupon tabs.

Source

File: /inc/coupon/inc/admin/class-admin-metaboxes.php
Used by: /inc/coupon/inc/admin/class-admin-metaboxes.php

Parameters
$tabs

Example:

function prefix_wp_travel_coupons_tabs( $tabs ) {
    $coupons['coupons_restrictions'] = array(
    'tab_label' => __( 'Restrictions',
    'wp-travel' ),
    'content_title' => __( 'Coupon Restrictions',
    'wp-travel' ),
    'priority' => 110,
    'callback' =>
    'wp_travel_coupons_restrictions_tab_callback',
    'icon' => 'fa-lock',
    );
    $tabs[ ‘wp-travel-coupons’ ] = $coupons;
    return $tabs;
}
add_filter( 'wp_travel_coupons_tabs', 'prefix_wp_travel_coupons_tabs' );