/**
* @param string $key Input field key
* @param string $type Input field type
* @param array $options
*/
public function add($key, $type = self::TYPE_STRING, $options = [])
{
$node = new self();
$node->setType($type);
if (isset($options['required'])) {
$node->setRequired($options['required']);
}
if (isset($options['constraints'])) {
$node->setConstraints($options['constraints']);
}
$this->offsetSet($key, $node);
return $node;
}
