WP Travel payments email tags.

Source

File: /inc/payments/wp-travel-payments.php
Used by: /inc/payments/wp-travel-payments.php

Parameters
$email_tags

Example:

function prefix_wp_travel_payment_email_tags( $email_tags ) {
    $email_tags[‘{custom_key}’] = ‘VALUE’;
    return $email_tags;
}
add_filter( 'wp_travel_payment_email_tags', 'prefix_wp_travel_payment_email_tags' );