Filter for getting query variables.

Source

File: /inc/class-wp-travel-query.php
Used by: /inc/class-wp-travel-form-query.php

Parameters
$query_vars

Example:

function prefix_wp_travel_get_query_vars( $query_vars ) {
    // $query_vars (array).
    // Code here
    return $query_vars;
}
add_filter( 'wp_travel_get_query_vars', 'prefix_wp_travel_get_query_vars' );