Not.php

1. 8.x drupal/core/vendor/phpunit/phpunit/PHPUnit/Framework/Constraint/Not.php
2. 8.x drupal/core/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Not.php

<?php

/*
 * This file is part of Twig.
 *
 * (c) 2009 Fabien Potencier
 * (c) 2009 Armin Ronacher
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
class Twig_Node_Expression_Unary_Not extends Twig_Node_Expression_Unary {
  public function operator(Twig_Compiler $compiler) {
    $compiler
      ->raw('!');
  }

}