automated_cron.module

<?php


/**
 * @file
 */
use Drupal\Core\Form\FormStateInterface;

/**
 * Form submission handler for system_cron_settings().
 */
function automated_cron_settings_submit(array $form, FormStateInterface $form_state) {
    \Drupal::configFactory()->getEditable('automated_cron.settings')
        ->set('interval', $form_state->getValue('interval'))
        ->save();
}