How can I create a WooCommerce variant product from Airtable?

Questions
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I’m trying to create a WooCommerce variant product from Airtable. I was able to create the parent product, but I have no idea how to upload the attributes (Color and Size). I imagine I should first upload the attributes and then create the variants. So far, I’ve managed to create two Array Aggregators, one for the colors and one for the sizes, but I don’t know how to pass that data to the WooCommerce Create Product module for the parent product.