code: public function get($form, $id): Submission
      {
          $object = $this->execute('GET', 'http://www.mocky.io/v2/592c4353110000e3026df7f8');
          /** @var \Ds\Component\Formio\Model\Submission $model */
          $model = static::toModel($object);
  
          return $model;
      }
docs: Get submission
  
  @param string $form
  @param string $id
  @return \Ds\Component\Formio\Model\Submission