Filter Subscription data in Direct Stripe and use trial period set in Stripe's product pricing plan

filter_direct_stripe_subscription_data.php

<?php
/*
 * Plugin Name: Direct Stripe Trial Period
 * Description: Use trial period set in a pricing plan
 * Author: Nicolas Figueira New0
 * Author URI:  https://newo.me
 * Version: 0.0.1
 */
add_filter('direct_stripe_subscription_data', function( $subscriptiondata ) {

    $subscriptiondata['trial_from_plan' ] = true;

    return $subscriptiondata;

});