Product Bundles, linked from: https://support.boldcommerce.com/hc/en-us/articles/200273298-Product-Bundles-Install-Instructions

shappify-bdl-load-bundle.liquid

<div id='shappify_bundle' onclick='$("form.bundle-form").unbind("submit")'></div>

<script async src="//secure.apps.shappify.com/apps/bundle/product_bundle.php?shop={{ shop.permanent_domain }}&product_id={{ product.id }}&_tmp=1529467710"></script>

<!-- the liquid variable "bold_bundles_widget" is no longer required. The line below replaces it. -->
<div class="bold-bundle" data-product-id="{{ product.id }}"></div>