@type t() :: %Paypal.Subscription.Product.Create{
  category: String.t() | nil,
  description: String.t() | nil,
  home_url: String.t() | nil,
  id: String.t() | nil,
  image_url: String.t() | nil,
  name: String.t() | nil,
  type: any() | nil
}

Fields for creating a product:

• name - The product name (required, max 127 characters).
• type - The product type: :physical, :digital, or :service (required).
• id - Optional custom product ID (max 127 characters).
• description - Optional product description (max 256 characters).
• category - Optional product category (max 256 characters).
• image_url - Optional product image URL.
• home_url - Optional product home page URL.