code: protected function applyFix(\SplFileInfo $file, Tokens $tokens)
      {
          $ending = $this->whitespacesConfig->getLineEnding();
          $lastIndex = $tokens->count() - 1;
  
          for ($index = $lastIndex; $index >= 0; --$index) {
              $token = $tokens[$index];
  
              if (!$token->isGivenKind(T_NAMESPACE)) {
                  continue;
              }
  
              $semicolonIndex = $tokens->getNextTokenOfKind($index, [';', '{', [T_CLOSE_TAG]]);
              $semicolonToken = $tokens[$semicolonIndex];
  
              if (!isset($tokens[$semicolonIndex + 1]) || !$semicolonToken->equals(';')) {
                  continue;
              }
  
              $nextIndex = $semicolonIndex + 1;
              $nextToken = $tokens[$nextIndex];
  
              if (!$nextToken->isWhitespace()) {
                  $tokens->insertAt($semicolonIndex + 1, new Token([T_WHITESPACE, $ending.$ending]));
              } else {
                  $tokens[$nextIndex] = new Token([
                      T_WHITESPACE,
                      ($nextIndex === $lastIndex ? $ending : $ending.$ending).ltrim($nextToken->getContent()),
                  ]);
              }
          }
      }
docs: {@inheritdoc}