getDocBlock example

$this->docBlockFactory = $docBlockFactory ?: DocBlockFactory::createInstance();
        $this->contextFactory = new ContextFactory();
        $this->phpDocTypeHelper = new PhpDocTypeHelper();
        $this->mutatorPrefixes = $mutatorPrefixes ?? ReflectionExtractor::$defaultMutatorPrefixes;
        $this->accessorPrefixes = $accessorPrefixes ?? ReflectionExtractor::$defaultAccessorPrefixes;
        $this->arrayMutatorPrefixes = $arrayMutatorPrefixes ?? ReflectionExtractor::$defaultArrayMutatorPrefixes;
    }

    public function getShortDescription(string $class, string $property, array $context = []): ?string
    {
        /** @var $docBlock DocBlock */
        [$docBlock] = $this->getDocBlock($class, $property);
        if (!$docBlock) {
            return null;
        }

        $shortDescription = $docBlock->getSummary();

        if (!empty($shortDescription)) {
            return $shortDescription;
        }

        foreach ($docBlock->getTagsByName('var') as $var) {
            

$this->accessorPrefixes = $accessorPrefixes ?? ReflectionExtractor::$defaultAccessorPrefixes;
        $this->arrayMutatorPrefixes = $arrayMutatorPrefixes ?? ReflectionExtractor::$defaultArrayMutatorPrefixes;

        $this->phpDocParser = new PhpDocParser(new TypeParser(new ConstExprParser()), new ConstExprParser());
        $this->lexer = new Lexer();
        $this->nameScopeFactory = new NameScopeFactory();
    }

    public function getTypes(string $class, string $property, array $context = []): ?array
    {
        /** @var PhpDocNode|null $docNode */
        [$docNode, $source, $prefix, $declaringClass] = $this->getDocBlock($class, $property);
        $nameScope = $this->nameScopeFactory->create($class, $declaringClass);
        if (null === $docNode) {
            return null;
        }

        switch ($source) {
            case self::PROPERTY:
                $tag = '@var';
                break;

            case self::ACCESSOR: