code: public function getClassyElements()
      {
          $this->tokens->rewind();
          $elements = [];
  
          for ($index = 1, $count = \count($this->tokens) - 2; $index < $count; ++$index) {
              if ($this->tokens[$index]->isClassy()) {
                  list($index, $newElements) = $this->findClassyElements($index);
                  $elements += $newElements;
              }
          }
  
          ksort($elements);
  
          return $elements;
      }
docs: Get indexes of methods and properties in classy code (classes, interfaces and traits).
  
  @return array[]