code: private function findAdditionalClasses(array $stmts, Logger $logger)
      {
          $closurePrinter = new ClosurePrinter($this->dispatcher, $logger);
          $lastMethod = null;
          $aditionalClass = array();
          $number = 0;
  
          foreach ($this->nodeFetcher->foreachNodes($stmts) as $nodeData) {
              $node = $nodeData['node'];
              if ($node instanceof Stmt\ClassMethod) {
                  $lastMethod = $node->name;
              } elseif ($node instanceof Expr\Closure) {
                  $aditionalClass[] = $closurePrinter->createClosureClass($node, $lastMethod, $number);
                  ++$number;
              }
          }
  
          return $aditionalClass;
      }
docs: @param array $stmts
  
  @return array