PhpParser\Node\Stmt\ClassMethod::returnsByRef PHP Method

    public function returnsByRef() {
        return $this->byRef;
    }

 public function addMethod(ClassMethodNode $node)
 {
     $method = new ReflectionMethod($node->name);
     $method->setStartLine((int) $node->getAttribute('startLine'));
     $method->setEndLine((int) $node->getAttribute('endLine'));
     $method->setDocComment((string) $node->getDocComment());
     $method->setReturnsByRef((bool) $node->returnsByRef());
     $method->setFinal((bool) $node->isFinal());
     $method->setStatic((bool) $node->isStatic());
     $this->addFunctionLikeParameters($method, $node->params);
     // All functions in an interface are implicitly abstract. There is no need to use the abstract keyword when declaring the function.
     if ($this->context->getReflection() instanceof ReflectionInterface) {
         $method->setAbstract(true);
     } else {
         $method->setAbstract((bool) $node->isAbstract());
     }
     if ($node->isPrivate()) {
         $method->setVisibility(ReflectionMethod::IS_PRIVATE);
     } elseif ($node->isProtected()) {
         $method->setVisibility(ReflectionMethod::IS_PROTECTED);
     } else {
         $method->setVisibility(ReflectionMethod::IS_PUBLIC);
     }
     $this->context->getReflection()->addMethod($method);
     $this->context->enterFunctionLike($method);
 }