magento2 – Cannot use __construct in bundle checkbox class

I want to add the product image to bundle product page for each option. I chose to extend class

This class has no __construct method, but I have to use it because I want to use MagentoCatalogHelperImage. When I define a construct method, the page crashes and throws an error
Call to a member function dispatch() on null

If I call parent::__construct, I receive a type error indicating the __construct methods do not match.

I have read that if the parent class does not have a __construct class, that I do not have to call parent, but in my case I cannot get this simple modification to work.

class Checkbox extends MagentoBundleBlockCatalogProductViewTypeBundleOptionCheckbox

public function __construct(
    MagentoCatalogInventoryApiStockRegistryInterface $stockRegistry,
    MagentoCatalogHelperImage $imageHelper
    $this->_stockRegistry = $stockRegistry;
    $this->_imageHelper = $imageHelper;