How can I retrieve the templateSuffix parameter when creating a product using product set?

How can I retrieve the templateSuffix parameter when creating a product using product set?

Can you do it like this:

mutation CreateProductWithTemplateSuffix {
  productSet(
    input: {
      title: "New Product with Template",
      templateSuffix: "custom-template"
    },
    synchronous: true
  ) {
    product {
      id
      title
      templateSuffix
      updatedAt
    }
    userErrors {
      field
      message
    }
  }
}

How to obtain all template Suffix options