PhpCsFixer\Tokenizer\Tokens::clearRange PHP Method

    public function clearRange($indexStart, $indexEnd)
    {
        for ($i = $indexStart; $i <= $indexEnd; ++$i) {
            $this[$i]->clear();
        }
    }

 /**
  * {@inheritdoc}
  */
 public function fix(\SplFileInfo $file, Tokens $tokens)
 {
     for ($index = $tokens->count() - 1; $index >= 0; --$index) {
         $token = $tokens[$index];
         if (!$token->isGivenKind(T_LIST)) {
             continue;
         }
         $openIndex = $tokens->getNextMeaningfulToken($index);
         $closeIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $openIndex);
         $markIndex = null;
         $prevIndex = $tokens->getPrevNonWhitespace($closeIndex);
         while ($tokens[$prevIndex]->equals(',')) {
             $markIndex = $prevIndex;
             $prevIndex = $tokens->getPrevNonWhitespace($prevIndex);
         }
         if (null !== $markIndex) {
             $tokens->clearRange($tokens->getPrevNonWhitespace($markIndex) + 1, $closeIndex - 1);
         }
     }
 }