variantForOptions always return undefined

[lezan]

I was testing the variantForOptions when I find out it is always undefined so this line

https://github.com/gatsbyjs/gatsby-starter-shopify/blob/66d9909db8d7492e6dbfb93e3d914ca0f626ec6c/src/pages/products/%7BShopifyProduct.productType%7D/%7BShopifyProduct.handle%7D.jsx#L48

always assign the second part (variant),

Checking Shopify documentation (here)[https://shopify.github.io/js-buy-sdk/product-helpers.js.html#line6] variant it is not what variantForOptions expect as the second argument but more an object like that

{
  size: "Small",
  color: "Red"
}

So maybe something like that can work and fix the issue

const productVariant = client?.product?.helpers?.variantForOptions(shopify, {
  [variant?.selectedOptions[0]?.name]: variant?.selectedOptions[0]?.value,
  [variant?.selectedOptions[1]?.name]: variant?.selectedOptions[1]?.value,
}) || variant;

If you wanna try it yourself just fork this repo and print the helpers with a console.