code: protected function applyFix(\SplFileInfo $file, Tokens $tokens)
      {
          static $map = [
              T_IS_EQUAL => [
                  'id' => T_IS_IDENTICAL,
                  'content' => '===',
              ],
              T_IS_NOT_EQUAL => [
                  'id' => T_IS_NOT_IDENTICAL,
                  'content' => '!==',
              ],
          ];
  
          foreach ($tokens as $index => $token) {
              $tokenId = $token->getId();
  
              if (isset($map[$tokenId])) {
                  $tokens[$index] = new Token([$map[$tokenId]['id'], $map[$tokenId]['content']]);
              }
          }
      }
docs: {@inheritdoc}