Get the Joomla registration form in Particle

[webarion]

Joomla receives the fields of the standard registration form in this way:

<?php foreach ($this->form->getFieldsets() as $fieldset) : ?>
  <?php if ($fieldset->name === 'captcha' && $this->captchaEnabled) : ?>
    <?php continue; ?>
  <?php endif; ?>
  <?php $fields = $this->form->getFieldset($fieldset->name); ?>
  <?php if (count($fields)) : ?>
    <fieldset>
      <?php if (isset($fieldset->label)) : ?>
        <legend><?php echo Text::_($fieldset->label); ?></legend>
      <?php endif; ?>
      <?php echo $this->form->renderFieldset($fieldset->name); ?>
    </fieldset>
  <?php endif; ?>
<?php endforeach; ?>

I am trying to get these fields in a particle:
{{ dump( joomla.call( 'FieldsHelper::getFields', 'com_users.registration' ) ) }}
This returns NULL. Tell me please, how can I do this?

[webarion]

I managed to create a solution to my question. Here's how to get the standard Joomla 4 registration form:

{% set form = joomla.call( 'JForm::getInstance', 'registration', constant('JPATH_ROOT')~'/components/com_users/forms/registration.xml' ) %}