Hello, I'm tryng to use class Form in a PHP code bloc like below after adding Nette\Form
but at display the message Uncaught error "Class Form...
<?php
echo '<pre>';
$form1 = new \Nette\Forms\Form();
$form1 ->input('username');
$form1 ->input('password');
echo $form1->submit();
echo '</pre>';
?>
Thank you.
